(Main list of acronyms) __NOTOC__ * a – (s)

Atto- A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic. Each prefix has a unique symbol that is prepended to any unit symbol. The pre ...

* A – (s)

Ampere The ampere (, ; symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units. is the unit of electric current in the International System of Units (SI). One ampere is equal to elect ...

A0–9

* A1C – Airman First Class * A2ATD or A²ATD – (i) Anti-Armour Advanced Technology Demonstration * A2C2 or A²C² – (i) Army Airspace Command and Control * A4 – many, including a European standard office paper size; ''see entry'' * A10 – (i) Atlantic 10 Conference

AA

* aa – (s) Afar language (ISO 639-1 code) * aA – (s) Attoampere * AA ** (i) achieved availability **

Alcoholics Anonymous Alcoholics Anonymous (AA) is an international mutual aid fellowship of alcoholics dedicated to abstinence-based recovery from alcoholism through its spiritually-inclined Twelve Step program. Following its Twelve Traditions, AA is non-professi ...

** (s) Armed Forces Americas (postal symbol) **

Aruba Aruba ( , , ), officially the Country of Aruba ( nl, Land Aruba; pap, Pais Aruba) is a constituent country of the Kingdom of the Netherlands physically located in the mid-south of the Caribbean Sea, about north of the Venezuela peninsula of ...

(FIPS 10-4 territory code) ** (i) assembly area **

Automobile Association Automobile associations, also referred to as motoring clubs, motoring associations, motor clubs, are organizations, either for-profit or non-profit, which motorists (drivers and vehicle owners) can join to enjoy benefits provided by the club relat ...

** avenue of approach **

American Airlines American Airlines is a major airlines of the United States, major US-based airline headquartered in Fort Worth, Texas, within the Dallas–Fort Worth metroplex. It is the Largest airlines in the world, largest airline in the world when measured ...

Aerolíneas Argentinas Aerolíneas Argentinas, formally Aerolíneas Argentinas S.A., is Argentina's largest airline and the country flag carrier. The airline was created in 1949 from the merger of four companies and started operations in . A consortium led by Iberia ...

AAA AAA, Triple A, or Triple-A is a three-letter initialism or abbreviation which may refer to: Airports * Anaa Airport in French Polynesia (IATA airport code AAA) * Logan County Airport (Illinois) (FAA airport code AAA) Arts, entertainment, and me ...

** (i) administration, authorization, and authentication ** American Automobile Association ("Triple-A") ** anti-aircraft artillery ** Amateur Athletic Association (of England) ** ''Asistencia Asesoría y Administración'' (Spanish, "Assistance, Consulting, and Administration" — original name of Mexican professional wrestling promotion

Lucha Libre AAA Worldwide Antonio Peña Promotions, S.A. de C.V. doing business as, d/b/a Lucha Libre AAA Worldwide is a Mexican Lucha Libre (professional wrestling) professional wrestling promotion, promotion based in Mexico City, Mexico. Commonly referred to as simply ...

) *

AAAI The Association for the Advancement of Artificial Intelligence (AAAI) is an international scientific society devoted to promote research in, and responsible use of, artificial intelligence. AAAI also aims to increase public understanding of artif ...

– (i)

Association for the Advancement of Artificial Intelligence The Association for the Advancement of Artificial Intelligence (AAAI) is an international scientific society devoted to promote research in, and responsible use of, artificial intelligence. AAAI also aims to increase public understanding of artif ...

, formerly American Association for Artificial Intelligence * AAAS – (i)

American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is an American international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific respons ...

* AAAV – (i) Advanced Amphibious Assault Vehicle * AABN – (i) African Aurora Business Network * AABP – (i)

American Association of Bovine Practitioners The American Association of Bovine Practitioners (AABP) is a nonprofit association of veterinarians who specialize in the care and treatment of bovines such as cattle. AABP has 13 districts covering the United States and Canada, but welcomes member ...

* AAC ** (i)

American Athletic Conference The American Athletic Conference (The American or AAC) is an American collegiate athletic conference, featuring 11 member universities and five affiliate member universities that compete in the National Collegiate Athletic Association's (NCAA) ...

Army Air Corps Army Air Corps may refer to the following army aviation corps: * Army Air Corps (United Kingdom), the army aviation element of the British Army * Philippine Army Air Corps (1935–1941) * United States Army Air Corps (1926–1942), or its p ...

(

British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...

) * AACL – (i)

Albanian American Civic League The Albanian American Civic League (AACL, Albanian language, Albanian: ''Lidhja Qytetare Shqiptaro-Amerikane'') is the only Albanian American Lobbying, lobby group in Washington, D.C., representing the concerns and interests of the Albanians, Alb ...

* AACCS – (i)

American Association of Christian Colleges and Seminaries American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

* AAD ** (i) analogue-analogue-digital (CD quality) **

Australian Antarctic Division The Australian Antarctic Division (AAD) is a division of the Department of Climate Change, Energy, the Environment and Water. The Division undertakes science programs and research projects to contribute to an understanding of Antarctica and the ...

* AADD – Adult attention deficit disorder *

AADT Annual average daily traffic, abbreviated AADT, is a measure used primarily in transportation planning, transportation engineering and retail location selection. Traditionally, it is the total volume of vehicle traffic of a highway or road for a y ...

– (i) annual average daily traffic * AADAC – (a) Alberta Alcohol and Drug Abuse Commission * AADC ** (i) area air defense commander ** (i) amino acid decarboxylase ** (i) aromatic L-amino acid decarboxylase ** (i) Australian Antarctic Data Centre * AAFC ** (i) U.S.

Army Air Corps Ferrying Command Air Transport Command (ATC) was a United States Air Force unit that was created during World War II as the strategic airlift component of the United States Army Air Forces. It had two main missions, the first being the delivery of supplies and ...

(1941–1942) **

All-America Football Conference The All-America Football Conference (AAFC) was a professional American football league that challenged the established National Football League (NFL) from 1946 to 1949. One of the NFL's most formidable challengers, the AAFC attracted many of the ...

(1946–1949) *

AAFES The Army & Air Force Exchange Service (AAFES, also referred to as The Exchange and The PX or The BX) is the retailer in U.S. Army and Air Force installations worldwide. The Exchange is headquartered in Dallas, Texas, and its director/chief exe ...

– (i) Army and Air Force Exchange Service * AAI – (i) applied artificial intelligence * AAIS – (i) advanced airborne interceptor simulator * AAM – (i)

air-to-air missile The newest and the oldest member of Rafael's Python family of AAM for comparisons, Python-5 (displayed lower-front) and Shafrir-1 (upper-back) An air-to-air missile (AAM) is a missile fired from an aircraft for the purpose of destroying a ...

* AAMOF – (i) as a matter of fact *

AAN ''Aan'' (Hindi: आन, Urdu: آن, translation: ''Pride''), released as ''The Savage Princess'' in the United Kingdom and United States, is a 1952 Indian Bollywood adventure film, produced and directed by Mehboob Khan. It was India's first t ...

– (i)

American Academy of Nursing The American Academy of Nursing (AAN) is a professional organization that generates, synthesizes, and disseminates nursing knowledge to contribute to health policy and practice for the benefit of the public and the nursing profession. Founded in ...

* AANEAS – (a) Anglo-Australian Near-Earth Asteroid Survey * AAODL – (i) Atmospheric Aerosols and Optics Data Library * a.a.p. – (i)

Associated Artists Productions Associated Artists Productions, Inc. (a.a.p.) later known as United Artists Associated was an American distributor of theatrical feature films and subjects for television. Associated Artists Productions was the copyright owner of the ''Popey ...

(former film distributor) * AAP ** (i) advanced acquisition plan ** Allied administrative publication **

American Academy of Pediatrics The American Academy of Pediatrics (AAP) is an American professional association of pediatricians, headquartered in Itasca, Illinois. It maintains its Department of Federal Affairs office in Washington, D.C. Background The Academy was founded ...

* AAPC – (i) Accounting and Auditing Policy Committee * aar – (s) Afar language (ISO 639-2 code) * AAR ** (i) after-action review **

Association of American Railroads The Association of American Railroads (AAR) is an industry trade group representing primarily the major freight Rail transport, railroads of North America (Canada, Mexico and the United States). Amtrak and some regional Commuter rail in North Am ...

* AARP – (i/s)

American Association of Retired Persons AARP (formerly called the American Association of Retired Persons) is an interest group in the United States focusing on issues affecting those over the age of fifty. The organization said it had more than 38 million members in 2018. The magazi ...

(now officially known only by the initials) * AAS ** (i) Advanced Automation System ** American Astronomical Society ("double-A-S") * AASPEM – (i) advanced air-to-air system performance evaluation model * AAT – (i)

Australian Antarctic Territory The Australian Antarctic Territory (AAT) is a part of East Antarctica claimed by Australia as an external territory. It is administered by the Australian Antarctic Division, an agency of the federal Department of Climate Change, Energy, the Env ...

* AAV – (i)

Amphibious Assault Vehicle The Assault Amphibious Vehicle (AAV)—official designation AAVP-7A1 (formerly known as Landing Vehicle, Tracked, Personnel-7 abbr. LVTP-7)—is a fully tracked amphibious landing vehicle manufactured by U.S. Combat Systems (previously by Unit ...

* AAWC – (i) anti-air warfare commander

AB

* ab – (s)

Abkhaz language Abkhaz ( ; ), sometimes spelled Abxaz and also known as Abkhazian, is a Northwest Caucasian language most closely related to Abaza. It is spoken mostly by the Abkhaz people. It is one of the official languages of Abkhazia, where around 100, ...

(ISO 639-1 code) * AB ** (i) Able Seaman (both the rank and

the occupation ''The Occupation'' is a single-player adventure video game developed by White Paper Games and released on PlayStation 4, Xbox One, and Microsoft Windows on 5 March 2019. The game takes place in a single government building, in real-time over fou ...

) ** (s)

Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...

(postal symbol) * ABA ** (i)

Adriatic Basketball Association Adriatic Basketball Association – ABA League, G.P., commonly referred to as the ABA League JTD, is a Croatian company based in Zagreb. It is the general partnership for organizing sports competitions. The company has been running the Adriatic L ...

American Bar Association The American Bar Association (ABA) is a voluntary bar association of lawyers and law students, which is not specific to any jurisdiction in the United States. Founded in 1878, the ABA's most important stated activities are the setting of acad ...

American Basketball Association The American Basketball Association (ABA) was a major men's professional basketball league from 1967 to 1976. The ABA ceased to exist with the ABA–NBA merger, American Basketball Association–National Basketball Association merger in 1976, ...

** American Beverage Association **

American Bicycle Association The American Bicycle Association (ABA) was a US-based BMX sports governing body in Gilbert, Arizona. In 2011, the ABA merged with the former National Bicycle League and became the current USA BMX. The organization was founded by Merl Mennenga ...

American Birding Association The American Birding Association (ABA) is a nonprofit organization, founded in 1969, dedicated to recreational birding in Canada and the United States. It has been called "the standard-bearer for serious birding in North America." Originally con ...

Australian Broadcasting Authority The Australian Broadcasting Authority (ABA) was an Australian government agency whose main roles were to regulate broadcasting, radiocommunications and telecommunications. The Authority took over the functions of the Australian Broadcasting Trib ...

ABB ABB Ltd. is a Swedish- Swiss multinational corporation headquartered in Zürich, Switzerland. The company was formed in 1988 when Sweden's Allmänna Svenska Elektriska Aktiebolaget (ASEA) and Switzerland's Brown, Boveri & Cie merged to crea ...

– (i)

ASEA Brown Boveri ABB Ltd. is a Swedish-Swiss multinational corporation headquartered in Zürich, Switzerland. The company was formed in 1988 when Sweden's Allmänna Svenska Elektriska Aktiebolaget (ASEA) and Switzerland's Brown, Boveri & Cie merged to cre ...

(Swiss-Swedish multinational company) *

ABBA ABBA ( , , formerly named Björn & Benny, Agnetha & Anni-Frid or Björn & Benny, Agnetha & Frida) are a Swedish supergroup formed in Stockholm in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. The group's ...

– (a) Agnetha,

Benny Benny or Bennie is a given name or a shortened version of the given name Benjamin or, less commonly, Benedict, Bennett, Benito, Benson, Bernice, Ebenezer or Bernard. People Bennie Given name * Bennie M. Bunn (1907–1943), American Marine o ...

Björn Bjorn (English, Dutch), Björn (Swedish, Icelandic, Dutch, and German), Bjørn (Danish, Faroese and Norwegian), Beorn (Old English) or, rarely, Bjôrn, Biorn, or Latinized Biornus, Brum (Portuguese), is a Scandinavian male given name, or less oft ...

, Anni-Frid (Swedish pop group) *

ABC ABC are the first three letters of the Latin script known as the alphabet. ABC or abc may also refer to: Arts, entertainment, and media Broadcasting * American Broadcasting Company, a commercial U.S. TV broadcaster ** Disney–ABC Television ...

** (i) abstinence, be faithful, condoms **

Active Body Control Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe electronically controlled hydropneumatic suspension. This suspension combines a high level of ride quality with control of the vehicle body motions, and therefore vi ...

** airway, breathing, circulation (see CPR) ** Alcoholic Beverage Commission ** alien big cat ** always be careful **

American Bird Conservancy American Bird Conservancy (ABC) is a non-profit membership organization with the mission of conserving wild birds and their habitats throughout the Americas. Its focus is on threats to birds in the Western Hemisphere – threats which include ov ...

American-born Chinese American-born Chinese () (sometimes abbreviated as ABC) is a term widely used to refer to Chinese people that were born in the United States and received U.S. citizenship due to birthright citizenship in the United States. Contested usage In ...

American Broadcasting Company The American Broadcasting Company (ABC) is an American commercial broadcast television network. It is the flagship property of the ABC Entertainment Group division of The Walt Disney Company. The network is headquartered in Burbank, Cali ...

anti-lock brake controller An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles, such as cars, motorcycles, trucks, and buses. ABS operates by preventing the wheels from locking up during braking, thereby maintaini ...

** Associated British Cinemas ***

ABC Cinemas ABC Cinemas (Associated British Cinemas) was a cinema chain in the United Kingdom. Originally a wholly owned subsidiary of Associated British Picture Corporation (ABPC), it operated between the 1930s and the 1980s. The brand name was reused in ...

***

ABC Weekend TV ABC Weekend TV was the popular name of the British broadcaster ABC Television Limited, which provided the weekend service in the Midlands and Northern England regions of the Independent Television (ITV) network from 1956 to 1968. It was one ...

(Associated British Cinemas (Television) Ltd / ABC Television Ltd) ** Associated British Corporation (

ABC Television ABC Television most commonly refers to: *ABC Television Network of the American Broadcasting Company, United States, or *ABC Television (Australian TV network), a division of the Australian Broadcasting Corporation, Australia ABC Television or ABC ...

Films Ltd) ** Atanasoff–Berry Computer ** Atlantic Baptist College ** atomic, biological, chemical (see NBC) **

Australian Broadcasting Corporation The Australian Broadcasting Corporation (ABC) is the national broadcaster of Australia. It is principally funded by direct grants from the Australian Government and is administered by a government-appointed board. The ABC is a publicly-own ...

** already been chewed gum * ABCA ** (i) American, British and Canadian Armies (originally) **

Army Bureau of Current Affairs The Army Bureau of Current Affairs (ABCA) was an organisation within the British Army during World War II to promote discussion among soldiers about current events, citizenship, and post-war reconstruction. In August 1940, Lord Croft, Under-Sec ...

* ABCS – (i) (U.S.)

Army Battle Command System {{Short description, American digital military system The Army Battle Command System (ABCS) is a digital Command, Control, Communications, Computers and Intelligence ( C4I) system for the US Army. It includes a mix of fixed/semi-fixed and mobile net ...

ABET The ABET (incorporated as the Accreditation Board for Engineering and Technology, Inc.) is a non-governmental organization that accredits post-secondary education programs in applied and natural sciences, computing, engineering and engineering ...

– (a) Accreditation Board for Engineering and Technology * ABFIST – (i) Advanced Bradley Full Crew Interactive Skills Trainer * ABGI – (i) Addington-Barker Group International *

ABIN The Brazilian Intelligence Agency ( pt, Agência Brasileira de Inteligência, ABIN) is the main intelligence agency in Brazil. ABIN's mission is to ensure that the Federal Executive has access to knowledge related to the security of the State a ...

– (a)

Agência Brasileira de Inteligência The Brazilian Intelligence Agency ( pt, Agência Brasileira de Inteligência, ABIN) is the main intelligence agency in Brazil. ABIN's mission is to ensure that the Federal Executive has access to knowledge related to the security of the State a ...

(Brazilian Intelligence Agency) * abk – (s)

(ISO 639-2 code) * ABL – (i) American Basketball League * ABLE – (a) AirBorne Law Enforcement (police air support unit) * ABM – (i)

anti-ballistic missile An anti-ballistic missile (ABM) is a surface-to-air missile designed to counter ballistic missiles (missile defense). Ballistic missiles are used to deliver nuclear weapon, nuclear, Chemical weapon, chemical, Bioagent, biological, or conventiona ...

–

Asynchronous Balanced Mode High-Level Data Link Control (HDLC) is a Bit-oriented protocol, bit-oriented code-transparent Synchronous serial communication, synchronous data link layer Communications protocol, protocol developed by the International Organization for Standard ...

–

automated banking machine An automated teller machine (ATM) or cash machine (in British English) is an electronic telecommunications device that enables customers of financial institutions to perform financial transactions, such as cash withdrawals, deposits, fun ...

* ABMC – (i)

American Battle Monuments Commission The American Battle Monuments Commission (ABMC) is an independent agency of the United States government that administers, operates, and maintains permanent U.S. military cemeteries, memorials and monuments primarily outside the United States. ...

* ABN ** (i)

Australian Business Number The Australian Business Number (ABN) is a unique 11-digit identifier issued by the Australian Business Register (ABR) which is operated by the Australian Taxation Office (ATO). The ABN was introduced on 1 July 2000 by John Howard's Liberal gover ...

(a number issued by the Australian government as registration of a business and used for taxation purposes) ** Advance Beneficiary Notice of Non-coverage (a form used in health insurance) * ABPI – (i)

Association of the British Pharmaceutical Industry The Association of the British Pharmaceutical Industry (ABPI) is the trade association for over 120 companies in the UK producing prescription medicines for humans, founded in 1891.

ABRSM The ABRSM (Associated Board of the Royal Schools of Music) is an examination board and registered charity based in the United Kingdom. ABRSM is one of five examination boards accredited by Ofqual to award graded exams and diploma qualification ...

– (a) Associated Board of the Royal Schools of Music * ABS ** (i)

acrylonitrile butadiene styrene Acrylonitrile butadiene styrene (ABS) (chemical formula (C8H8)''x''·(C4H6)''y''·(C3H3N)''z'' is a common thermoplastic polymer. Its glass transition temperature is approximately . ABS is amorphous and therefore has no true melting point. A ...

** anti-lock braking system * ABSA – (a) Amalgamated Banks of South Africa ("ab-sa") * ABSTRIPS – (p) abstraction-based STRIPS * ABV – (i)

Alcohol by volume Alcohol by volume (abbreviated as ABV, abv, or alc/vol) is a standard measure of how much alcohol (ethanol) is contained in a given volume of an alcoholic beverage (expressed as a volume percent). It is defined as the number of millilitres (mL) o ...

* ABW – (s)

(ISO 3166 trigram)

AC

* aC – (s) Attocoulomb * Ac – (s)

Actinium Actinium is a chemical element with the symbol Ac and atomic number 89. It was first isolated by Friedrich Oskar Giesel in 1902, who gave it the name ''emanium''; the element got its name by being wrongly identified with a substance An ...

* AC ** (i) Adriamycin-Cyclophosphamide (chemotherapy) **

Air Conditioning Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling ...

** Aircraftman **

Alternating Current Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in whic ...

Altocumulus Altocumulus (From Latin ''Altus'', "high", ''cumulus'', "heaped") is a middle-altitude cloud genus that belongs mainly to the ''stratocumuliform'' physical category characterized by globular masses or rolls in layers or patches, the individual ele ...

** ''ante Christum'' (Latin, "before Christ"; see BC) ** ''ante cibum'' (Latin, "before meals") ** (s)

Antigua and Barbuda Antigua and Barbuda (, ) is a sovereign country in the West Indies. It lies at the juncture of the Caribbean Sea and the Atlantic Ocean in the Leeward Islands part of the Lesser Antilles, at 17°N latitude. The country consists of two maj ...

(FIPS 10-4 country code) ** (i) ''Associazione Calcio'' (Italian, "football (soccer) club") * A/C – (i) Air Conditioned/Conditioning – Aircraft * AC1 – Aircraftman 1st Class * AC2 – Aircraftman 2nd Class * ACA **

Affordable Care Act The Affordable Care Act (ACA), formally known as the Patient Protection and Affordable Care Act and colloquially known as Obamacare, is a landmark U.S. federal statute enacted by the 111th United States Congress and signed into law by Presid ...

, shorthand for the Patient Protection and Affordable Care Act, commonly called "Obamacare" ** (i) Airspace Control Authority ** Airspace Co-ordination Area ** ''

A Current Affair ''A Current Affair'' may refer to: * ''A Current Affair'' (Australian TV program), 1971–present Australian current affairs program that airs on Nine Network * ''A Current Affair'' (American TV program), a 1986–1998 American television news ...

'' *

ACAB ACAB (All Cops Are Bastards) is an acronym used as a political slogan associated with dissidents who are opposed to the police. It is typically written as a catchphrase in graffiti, tattoos or other imagery in public spaces. It is sometimes num ...

, short for "All Cops Are Bastards"; used as a

political slogan The following is a list of notable political slogans. Political slogan (listed alphabetically) A * Abki baar Modi Sarkar – Bharatiya Janata Party's campaign slogan for 2014 Indian Parliamentary Elections * ACT UP, Fight Back, Fight AIDS – ...

associated with

dissident A dissident is a person who actively challenges an established political or religious system, doctrine, belief, policy, or institution. In a religious context, the word has been used since the 18th century, and in the political sense since the 20th ...

s who are opposed to the

police The police are a constituted body of persons empowered by a state, with the aim to enforce the law, to ensure the safety, health and possessions of citizens, and to prevent crime and civil disorder. Their lawful powers include arrest and t ...

. * ACARS – (a) Aircraft Communications Addressing and Reporting System *

ACAS The Advisory, Conciliation and Arbitration Service (Acas) is a Crown non-departmental public body of the Government of the United Kingdom. Its purpose is to improve organisations and working life through the promotion and facilitation of strong ...

** (a) Aboriginal Children's Advancement Society **

Advisory, Conciliation and Arbitration Service The Advisory, Conciliation and Arbitration Service (Acas) is a Crown non-departmental public body of the Government of the United Kingdom. Its purpose is to improve organisations and working life through the promotion and facilitation of strong ...

* ACB – (i) '' Asociación de Clubes de Baloncesto'' (Spanish for "Association of Basketball Clubs") *

ACC ACC most often refers to: * Atlantic Coast Conference, an NCAA Division I collegiate athletic conference located in the US *American College of Cardiology, A US-based nonprofit medical association that bestows credentials upon cardiovascular spec ...

** (i) U.S.

Air Combat Command Air Combat Command (ACC) is one of nine Major Commands (MAJCOMs) in the United States Air Force, reporting to Headquarters, United States Air Force (HAF) at the Pentagon. It is the primary provider of air combat forces for the Air Force, and i ...

** Air Component Commander **

Alpine Club of Canada The Alpine Club of Canada (ACC) is an amateur athletic association with its national office in Canmore, Alberta that has been a focal point for Canadian mountaineering since its founding in 1906. The club was co-founded by Arthur Oliver Wheeler ...

Altocumulus castellanus In meteorology, Altocumulus castellanus or Altocumulus castellatus (ACCAS) is a cloud type named for its tower-like projections that billow upwards from the base of the cloud. The base of the cloud can form as low as 2,000 metres (6,500 feet), or ...

Area control center In air traffic control, an area control center (ACC), also known as a center or en-route center, is a facility responsible for controlling aircraft flying in the airspace of a given flight information region (FIR) at high altitudes between ai ...

Atlantic Coast Conference The Atlantic Coast Conference (ACC) is a collegiate athletic conference located in the eastern United States. Headquartered in Greensboro, North Carolina, the ACC's fifteen member universities compete in the National Collegiate Athletic Associa ...

Automatic climate control Automobile air conditioning systems use air conditioning to cool the Atmosphere of Earth, air in a vehicle. History A company in New York City in the United States first offered installation of air conditioning for cars in 1933. Most of their cu ...

* ACCA ** (i) The Association of Chartered Certified Accountants ** Automatic Cloud Cover Assessment *

ACCAC ACCAC (the acronym of Awdurdod Cymwysterau, Cwricwlwm ac Asesu Cymru) was the Qualifications, Curriculum and Assessment Authority for Wales. On 1 April 2006, it merged with the Welsh Assembly Government's new Department for Children, Education, ...

– (a) ''Awdurdod Cymwysterau, Cwricwlwm ac Asesu Cymru'' (Qualifications, Curriculum and Assessment Authority for Wales) * ACCD –

American Coalition of Citizens with Disabilities The American Coalition of Citizens with Disabilities (ACCD) was, in the mid-1970s to early 1980s, a national consumer-led disability rights organization called, by nationally syndicated columnist Jack Anderson and others, "the handicapped lobby". ...

* ACCS – (i) Air Communications and Control Squadron * ACDA – (i) Arms Control & Disarmament Agency *

ACDC ACDC may refer to: * AC/DC, an Australian rock music group * ACDC (medicine), Arterial calcification due to deficiency of CD73 (ACDC), a rare genetic disorder * Adiponectin, a peptide hormone * All Campus Dining Center, a dining hall at Vassar C ...

** (i) Alternating Current Direct Current ** the name of an Australian rock music band ** a term for a

bisexual Bisexuality is a romantic or sexual attraction or behavior toward both males and females, or to more than one gender. It may also be defined to include romantic or sexual attraction to people regardless of their sex or gender identity, whi ...

person * A/Cdre – Air Commodore * ACDT ** (a) Apple Certified Desktop Technician ** (a)

Australian Central Daylight Time Australia uses three main time zones: Australian Western Standard Time (AWST; UTC+08:00), Australian Central Standard Time (ACST; UTC+09:30), and Australian Eastern Standard Time (AEST; UTC+10:00). Time is regulated by the individual state ...

ACE An ace is a playing card, die or domino with a single pip. In the standard French deck, an ace has a single suit symbol (a heart, diamond, spade, or club) located in the middle of the card, sometimes large and decorated, especially in the c ...

** (a) Air Combat Emulator (computer game) ** Allied Command Europe ** Angiotensin-converting enzyme ** Armored Combat Earthmover ** Automatic Computing Engine * ACE2 – (i/p)

Angiotensin-converting enzyme 2 Angiotensin-converting enzyme 2 (ACE2) is an enzyme that can be found either attached to the membrane of cells (mACE2) in the intestines, kidney, testis, gallbladder, and heart or in a soluble form (sACE2). Both membrane bound and soluble ACE2 a ...

(pronounced "ace-two") * ACES ** (a) '' Aerolíneas Centrales de Colombia'' (Spanish, "Central Colombian Airlines") ** Auxiliary Campus Enterprises and Services of

Alfred State College Alfred State College (ASC, SUNY Alfred, SUNY Alfred State) is a public college in Alfred, New York. It is part of the State University of New York (SUNY) system. The college, formerly the Technical College at Alfred, offers a wide variety o ...

* ACF ** (i)

Administration for Children and Families The Administration for Children and Families (ACF) is a division of the United States Department of Health and Human Services (HHS). It is headed by the Assistant Secretary of Health and Human Services for Children and Families. It has a $49 billi ...

American Car and Foundry ACF Industries, originally the American Car and Foundry Company (abbreviated as ACF), is an American manufacturer of railroad rolling stock. One of its subsidiaries was once (1925–54) a manufacturer of motor coaches and trolley coaches und ...

American Culinary Federation The American Culinary Federation (ACF) was established in 1929 in New York City and is the largest professional chefs' organization in North America. It was the progeny of the combined visions of three chefs' associations in New York City, the Soci ...

* ACH – (i)

Automated clearing house An automated clearing house (ACH) is a computer-based electronic network for processing transactions, usually domestic low value payments, between participating financial institutions. It may support both credit transfers and direct debits. T ...

* ACHT – (i) Average Call Hold Time *

ACID In computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. In the context of databases, a sequ ...

– (a) Atomicity, Consistency, Isolation, and Durability (in

database In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases sp ...

s) *

ACINT Acoustical intelligence (ACOUSTINT, sometimes ACINT) is an intelligence gathering discipline that collects and processes acoustic phenomena. It is a subdiscipline of MASINT (Measurement and Signature Intelligence). This uses broadband and narrow ...

– (p) Acoustic Intelligence * ACK – (p) Acknowledge (telecommunications; cf. NAK) * ACL ** (i)

Access Control List In computer security, an access-control list (ACL) is a list of permissions associated with a system resource (object). An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on giv ...

Anterior cruciate ligament The anterior cruciate ligament (ACL) is one of a pair of cruciate ligaments (the other being the posterior cruciate ligament) in the human knee. The two ligaments are also called "cruciform" ligaments, as they are arranged in a crossed formation ...

; the initialism can also refer to an injury to this ligament **

Atlantic Coast Line Railroad The Atlantic Coast Line Railroad was a United States Class I railroad formed in 1900, though predecessor railroads had used the ACL brand since 1871. In 1967 it merged with long-time rival Seaboard Air Line Railroad to form the Seaboard Coast L ...

* ACLJ – (i)

American Center for Law and Justice The American Center for Law & Justice (ACLJ) is a politically conservative, Christian-based legal organization in the United States. It is headquartered in Washington, D.C., and associated with Regent University School of Law in Virginia Beach, ...

ACLOS Missile guidance refers to a variety of methods of guiding a missile or a guided bomb to its intended target. The missile's target accuracy is a critical factor for its effectiveness. Guidance systems improve missile accuracy by improving its ...

– (i) Automatic CLOS (missile control system) * ACLS – (i) American Council of Learned Societies * ACLU ** (i)

American Civil Liberties Union The American Civil Liberties Union (ACLU) is a nonprofit organization founded in 1920 "to defend and preserve the individual rights and liberties guaranteed to every person in this country by the Constitution and laws of the United States". T ...

** American Communist Lawyers Union (pejorative slang for the above) * ACM – many, including

Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional member ...

; ''see entry'' * ACMC – (i) (U.S.) Assistant Commandant of the Marine Corps * ACN ** (i) Airborne Communications Node **

Australian Company Number An Australian Company Number (usually shortened to ACN) is a unique identifier required by every company registered under Australia’s ''Corporations Act 2001'' (Cth). The ACN is a nine-digit number issued by the Australian Securities & Investm ...

(number issued by the Australian government as registration of a limited liability company) * ACNA – (i)

Anglican Church in North America The Anglican Church in North America (ACNA) is a Christian denomination in the Anglican tradition in the United States and Canada. It also includes ten congregations in Mexico, two mission churches in Guatemala, and a missionary diocese in Cuba ...

* ACO – (i) Airspace Control Order * ACOBA – (a)

Advisory Committee on Business Appointments The Advisory Committee on Business Appointments (ACOBA) is a non-departmental public body in the United Kingdom, which was set up in 1975 to provide advice on applications from the most senior Crown servants who wish to take up outside appointments ...

* ACOG – (a)

American College of Obstetricians and Gynecologists The American College of Obstetricians and Gynecologists (ACOG) is a professional association of physicians specializing in obstetrics and gynecology in the United States. Several Latin American countries are also represented within Districts of ...

ACOM is one of Japan's largest consumer loan companies, (or ''sarakin''). The name "Acom" stands for Affection, Confidence and Moderation. The company was founded by Masao Kinoshita, who was later replaced by his eldest son Kyosuke Kinoshita, the curr ...

– (p) (U.S.) Atlantic Command * ACORN – (a)

Association of Community Organizations for Reform Now The Association of Community Organizations for Reform Now (ACORN) is an international collection of autonomous community-based organizations that advocated for low- and moderate-income families by working on neighborhood safety, voter registrati ...

* ACP ** (i)

African, Caribbean and Pacific Group of States The Organisation of African, Caribbean and Pacific States (OACPS) is a group of countries in Africa, the Caribbean, and the Pacific that was created by the Georgetown Agreement in 1975. Formerly known as African, Caribbean and Pacific Group ...

** Air Control Point * ACR – (i) Advanced Concepts and Requirements *

ACRI Acri ( Calabrian: ) is a town of 19.949 inhabitants in the northern part of Calabria region in southern Italy. Since 17 September 2001 Acri has had the "status" of city. Acri's coat of arms is represented by three mountains surmounted by thre ...

– (p) African Crisis Initiative * ACRT – (i) Advanced Concepts Research Tool simulator * ACS ** (i) Affiliated Computer Services (NYSE ACS) ** Alaska Communications Service **

American Cancer Society The American Cancer Society (ACS) is a nationwide voluntary health organization dedicated to eliminating cancer. Established in 1913, the society is organized into six geographical regions of both medical and lay volunteers operating in more than ...

American Chemical Society The American Chemical Society (ACS) is a scientific society based in the United States that supports scientific inquiry in the field of chemistry. Founded in 1876 at New York University, the ACS currently has more than 155,000 members at all d ...

Association of Caribbean States The Association of Caribbean States (ACS; es, Asociación de Estados del Caribe; french: Association des États de la Caraïbe) is an advisory association of nations centered on the Caribbean Basin. It was formed with the aim of promoting cons ...

Australian Computer Society The Australian Computer Society (ACS) is an association for information and communications technology professionals with over 48,000 members Australia-wide. According to its Constitution, its objectives are "to advance professional excellence ...

* ACSC – (i) Army Command and Staff College (various nations) * ACST – (i) Australian Central Standard Time * ACST – (i)

American Cooperative School of Tunis The American Cooperative School of Tunis or ACST ( ar, المدرسة التعاونية الأمريكية بتونس) is a comprehensive American, international, non-profit, private school located in El Aouina, Tunisia The school enrolls more t ...

* ACT ** (i) Adaptive Control of Thought (cognitive model) ** American College Test (ing Program) **

Australian Capital Territory The Australian Capital Territory (commonly abbreviated as ACT), known as the Federal Capital Territory (FCT) until 1938, is a landlocked federal territory of Australia containing the national capital Canberra and some surrounding townships. ...

(also postal symbol) * ACT UP – (a)

AIDS Coalition to Unleash Power AIDS Coalition to Unleash Power (ACT UP) is an international, grassroots political group working to end the AIDS pandemic. The group works to improve the lives of people with AIDS through direct action, medical research, treatment and advocacy ...

* ACTD – (i) Advanced Concept Technology Demonstration *

ACTF The Australian Children's Television Foundation (ACTF) is a national non-profit children's media production and policy hub. The ACTF helps develop children's television policy; distributes and pays for Australian children's television series; ...

** (i) (U.S.) Army Constructive Training Federation **

Australian Children's Television Foundation The Australian Children's Television Foundation (ACTF) is a national non-profit children's media production and policy hub. The ACTF helps develop children's television policy; distributes and pays for Australian children's television series; ...

ACT-R ACT-R (pronounced /ˌækt ˈɑr/; short for "Adaptive Control of Thought—Rational") is a cognitive architecture mainly developed by John Robert Anderson and Christian Lebiere at Carnegie Mellon University. Like any cognitive architecture, ACT-R ...

– (i) ACT-Rational (cognitive model) * ACT-R/PM – (i) ACT-R/Perceptual-Motor (cognitive model) *

ACTU The Australian Council of Trade Unions (ACTU), originally the Australasian Council of Trade Unions, is the largest peak body representing workers in Australia. It is a national trade union centre of 46 affiliated unions and eight trades and l ...

– (i)

Australian Council of Trade Unions The Australian Council of Trade Unions (ACTU), originally the Australasian Council of Trade Unions, is the largest peak body representing workers in Australia. It is a national trade union centre of 46 affiliated unions and eight trades and la ...

* ACU ** (i)

Abilene Christian University Abilene Christian University (ACU) is a Private university, private Churches of Christ, Christian university in Abilene, Texas. It was founded in 1906 as ''Childers Classical Institute''. ACU is one of the largest private universities in the Sout ...

American Conservative Union The American Conservative Union (ACU) is an American political organization that advocates for conservative policies, ranks politicians based on their level of conservatism, and organizes the Conservative Political Action Conference. Founded on ...

* ACUF ** (i) BGN

Advisory Committee on Undersea Features The United States Board on Geographic Names (BGN) is a federal body operating under the United States Secretary of the Interior. The purpose of the board is to establish and maintain uniform usage of geographic names throughout the federal governm ...

** (a) American Conservative Union Foundation * ACV – (i) Armoured Combat Vehicle

* AD – (i) Air Defence – (s)

Andorra , image_flag = Flag of Andorra.svg , image_coat = Coat of arms of Andorra.svg , symbol_type = Coat of arms , national_motto = la, Virtus Unita Fortior, label=none (Latin)"United virtue is stro ...

(ISO 3166 digram) – (i) ''

Anno Domini The terms (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars. The term is Medieval Latin and means 'in the year of the Lord', but is often presented using "our Lord" instead of "the Lord", ...

'' (Latin, "In the year of our

Lord Lord is an appellation for a person or deity who has authority, control, or power over others, acting as a master, chief, or ruler. The appellation can also denote certain persons who hold a title of the peerage in the United Kingdom, or ar ...

") * A/D – (i) Analog/Digital *

ADA Ada may refer to: Places Africa * Ada Foah, a town in Ghana * Ada (Ghana parliament constituency) * Ada, Osun, a town in Nigeria Asia * Ada, Urmia, a village in West Azerbaijan Province, Iran * Ada, Karaman, a village in Karaman Province, ...

** (i) Air Defence Artillery ** American Dental Association **

Assistant District Attorney In the United States, a district attorney (DA), county attorney, state's attorney, prosecuting attorney, commonwealth's attorney, or state attorney is the chief prosecutor and/or chief law enforcement officer representing a U.S. state in a lo ...

** Americans with Disabilities Act (see also the similar but non-acronymic

Ada Ada may refer to: Places Africa * Ada Foah, a town in Ghana * Ada (Ghana parliament constituency) * Ada, Osun, a town in Nigeria Asia * Ada, Urmia, a village in West Azerbaijan Province, Iran * Ada, Karaman, a village in Karaman Province, ...

programming language) ** ADA Cryptocurrency token for Cardano blockchain *

ADAC ADAC, officially the Allgemeiner Deutscher Automobil-Club (), is Europe's largest motoring association. ADAC is the largest club (Verein) in Germany with around 21 million members. It would be more aptly described today as an individual mo ...

– (a/i) ''Allgemeiner Deutscher Automobil-Club'' (German, "General German Automobile Club") *

ADAGE An adage (; Latin: adagium) is a memorable and usually philosophical aphorism that communicates an important truth derived from experience, custom, or both, and that many people consider true and credible because of its longeval tradition, i.e. ...

– (a) Air Defense Air to Ground Engagement (simulation) * ADAP – (i) AIDS Drug Assistance Program * ADAS – (a/i)

Asiago-DLR Asteroid Survey The Asiago-DLR Asteroid Survey (ADAS; obs. code: 209) was an astronomical survey conducted in the early 2000s to search for comets and asteroids, with special emphasis on near-Earth objects. The Minor Planet Center directly credits ADA ...

* ADAT – (i) Alesis Digital Audio Tape (recording format) * ADatP – (p) Automated Data Processing * ADATS – ** (i) Agricultural Development and Training Society ** Air Defence Anti-Tank System ** Australian Defence Air Traffic System * ADB – (i)

Asian Development Bank The Asian Development Bank (ADB) is a regional development bank established on 19 December 1966, which is headquartered in the Ortigas Center located in the city of Mandaluyong, Metro Manila, Philippines. The bank also maintains 31 field office ...

* ADB- All da best/All the best - texting slang *

ADC ADC may refer to: Science and medicine * ADC (gene), a human gene * AIDS dementia complex, neurological disorder associated with HIV and AIDS * Allyl diglycol carbonate or CR-39, a polymer * Antibody-drug conjugate, a type of anticancer treatm ...

– ** (i) Aide De Camp ** U.S.

Air Defense Command Aerospace Defense Command was a major command (military formation), command of the United States Air Force, responsible for continental air defense. It was activated in 1968 and disbanded in 1980. Its predecessor, Air Defense Command, was est ...

(1946–1992) **

Apple Display Connector The Apple Display Connector (ADC) is a proprietary modification of the DVI connector that combines analog and digital video signals, USB, and power all in one cable. It was used in later versions of the Apple Studio Display, including the final ...

** Program Against Digital Counterfeiting of Currency * ADCTS – (i) Advanced Distributed Combat Training System *

ADD Addition (usually signified by the plus symbol ) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or '' sum'' of ...

– ** (i) Analog Digital Digital ( CD quality) **

Attention-Deficit Disorder Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by excessive amounts of inattention, hyperactivity, and impulsivity that are pervasive, impairing in multiple contexts, and otherwise age-inap ...

** Administration on Developmental Disabilities *

ADDIE Addie is a given name, nickname and surname. It may refer to: People with the name Given name * Addie Aylestock (1909–1998), Canadian minister in the British Methodist Episcopal Church, the first woman minister to be ordained in that church, ...

– (i) Analyze Design Develop Implement and Evaluate * ADDNS – (i) Advanced Deployable Day/Night Simulation * ADE ** (i)

Algebraic differential equation In mathematics, an algebraic differential equation is a differential equation that can be expressed by means of differential algebra. There are several such notions, according to the concept of differential algebra used. The intention is to i ...

Antibody-dependent enhancement Antibody-dependent enhancement (ADE), sometimes less precisely called immune enhancement or disease enhancement, is a phenomenon in which binding of a virus to suboptimal antibodies enhances its entry into host cells, followed by its repl ...

* ADF ** (i)

Australian Defence Force The Australian Defence Force (ADF) is the military organisation responsible for the defence of the Commonwealth of Australia and its national interests. It consists of the Royal Australian Navy (RAN), Australian Army, Royal Australian Air Forc ...

** African Development Foundation * ADGB –

Air Defence of Great Britain The Air Defence of Great Britain (ADGB) was a RAF command comprising substantial army and RAF elements responsible for the air defence of the British Isles. It lasted from 1925, following recommendations that the RAF take control of homeland air ...

* ADHD – (i)

Attention-Deficit Hyperactivity Disorder Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by excessive amounts of inattention, hyperactivity, and impulsivity that are pervasive, impairing in multiple contexts, and otherwise age-inappr ...

* ADHS – (i) Attention-Deficit Hyperactivity Syndrome *

ADI Adi or ADI may refer to: Names and titles * Adi (mythology), an Asura in Hindu faith who appears in the Matsya Purāṇa * Adi (name), a given name in Hebrew and a nickname in other languages * Adi (title), a Fijian title used by females of chi ...

– (i) Acceptable/Allowable Daily Intake * ADIZ – (a/i) Air Defence Identification Zone * ADL – (i)

Anti-Defamation League The Anti-Defamation League (ADL), formerly known as the Anti-Defamation League of B'nai B'rith, is an international Jewish non-governmental organization based in the United States specializing in civil rights law. It was founded in late Septe ...

* ad loc. – (p) ''ad locum'' (Latin, "to/at the place") * ADM – ** (i) Administrative ** (s)

Admiral Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet, ...

, and the U.S.

Public Health Service Commissioned Corps The United States Public Health Service Commissioned Corps (PHSCC), also referred to as the Commissioned Corps of the United States Public Health Service, is the federal uniformed service of the U.S. Public Health Service (PHS) and one of the e ...

** Archer Daniels Midland ** Assistant Deputy Minister * ADOA – (a/i) Air Defence Operations Area * ADP – ** (i) Adenosine DiPhosphate ** Army Doctrine Publication (UK, Canada, Australia) ** Automatic/Automated Data Processing * ADRG – (p) Arc-second Raster Chart (ARC) Digitized Raster Graphics *

ADS" \n\nads.txt (Authorized Digital Sellers) is an initiative from IAB Technology Laboratory. It specifies a text file that companies can host on their web servers, listing the other companies authorized to sell their products or services. This is des ...

– ** (a/i)

Active Denial System The Active Denial System (ADS) is a non-lethal directed-energy weapon developed by the U.S. military, designed for area denial, perimeter security and crowd control. Informally, the weapon is also called the heat ray since it works by heating t ...

Astrophysics Data System The SAO/NASA Astrophysics Data System (ADS) is an online database of over 16 million astronomy and physics papers from both peer reviewed and non-peer reviewed sources. Abstracts are available free online for almost all articles, and full scanned ...

** Attention Deficit Syndrome * ADSR – (i) Attack, Decay, Sustain, Release (sound envelope specification) * ADT ** (i)

Abu Dhabi Terminals Abu Dhabi Terminals ( ar, شركة مرافئ أبوظبى) or ADT was established in May 2006, by Emiri Decree No. (6) as the main port operator for all commercial ports in Abu Dhabi supporting the economic diversification in Abu Dhabi’s 2030 ...

, operator of commercial ports in Abu Dhabi ** American District Telegraph, a former name of ADT Inc. ** Atlantic Daylight Time (UTC−3 hours) * ADTB – (i) Army Doctrine and Training Bulletin * adv. – (p) ''adversus'' (Latin, "against") * ADW – (i) Air Defence Warning

AE

* ae – (s)

Avestan language Avestan (), or historically Zend, is an umbrella term for two Old Iranian languages: Old Avestan (spoken in the 2nd millennium BCE) and Younger Avestan (spoken in the 1st millennium BCE). They are known only from their conjoined use as the scrip ...

(ISO 639-1 code) * AE ** (s) Armed Forces Africa/Canada/Europe/Middle East (postal symbol) **

United Arab Emirates The United Arab Emirates (UAE; ar, اَلْإِمَارَات الْعَرَبِيَة الْمُتَحِدَة ), or simply the Emirates ( ar, الِْإمَارَات ), is a country in Western Asia (The Middle East). It is located at th ...

(ISO 3166 digram; FIPS 10-4 country code) ** (i) Artix Entertainment ** American Eagle * A&E ** (a/i) Arts & Entertainment Network, the original name for the U.S. TV channel now known as

A&E Network A&E is an American basic cable network, the flagship television property of A&E Networks. The network was originally founded in 1984 as the Arts & Entertainment Network, initially focusing on fine arts, documentaries, television drama, dramas, and ...

Accident and Emergency An emergency department (ED), also known as an accident and emergency department (A&E), emergency room (ER), emergency ward (EW) or casualty department, is a medical treatment facility specializing in emergency medicine, the acute care of pa ...

* AEB – Autonomous Emergency Braking, see Collision avoidance system * AED – (s) United Arab Emirates

dirham The dirham, dirhem or dirhm ( ar, درهم) is a silver unit of currency historically and currently used by several Arab and Arab influenced states. The term has also been used as a related unit of mass. Unit of mass The dirham was a un ...

(

ISO 4217 ISO 4217 is a standard published by the International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies and provides information about the relationships between individual cu ...

currency code) *

AEDT Australia uses three main time zones: Australian Western Standard Time (AWST; UTC+08:00), Australian Central Standard Time (ACST; UTC+09:30), and Australian Eastern Standard Time (AEST; UTC+10:00). Time is regulated by the individual state ...

– (a)

Australian Eastern Daylight Time Each state and territory of Australia determines whether or not to use daylight saving time (DST). However, during World War I and World War II all states and territories had daylight saving by federal law, under the defence power in section ...

* AEF – (i) American Expeditionary Force *

AEGIS The aegis ( ; grc, αἰγίς ''aigís''), as stated in the ''Iliad'', is a device carried by Athena and Zeus, variously interpreted as an animal skin or a shield and sometimes featuring the head of a Gorgon. There may be a connection with a d ...

– (p) Airborne Early warning Ground environment Interface Segment ( fake etymology) * AEI-T – (i) Army Enterprise Infostructure-Transport * aeq. – (p) ''aequalis'' (Latin, "equal") * AESR – (i) Aeronautical Equipment Service Record *

AEST Australia uses three main time zones: Australian Western Standard Time (AWST; UTC+08:00), Australian Central Standard Time (ACST; UTC+09:30), and Australian Eastern Standard Time (AEST; UTC+10:00). Time is regulated by the individual state gov ...

– (a)

Australian Eastern Standard Time Australia uses three main time zones: Australian Western Standard Time (AWST; UTC+08:00), Australian Central Standard Time (ACST; UTC+09:30), and Australian Eastern Standard Time (AEST; UTC+10:00). Time is regulated by the individual state ...

* aet. – (p) ''aetatis'' (Latin, "of age", "aged") * aet – (i) After extra time (Football) *

AEW AEW or aew may refer to: * Airborne early warning, airborne radar system for detecting aircraft * Aerosvit Airlines, an airline based in Kyiv, Ukraine (ICAO airline designator: AEW) * AEW Capital Management, a property investment management company ...

** (i)

Air Expeditionary Wing Air Expeditionary Wings and Groups are a Wing/Group concept used by the United States Air Force. These units are activated under temporary orders by the owning Major Command (MAJCOM) for a specific purpose or mission. Once that mission is comp ...

** (i)

Airborne early warning Airborne or Airborn may refer to: Arts, entertainment, and media Films * ''Airborne'' (1962 film), a 1962 American film directed by James Landis * ''Airborne'' (1993 film), a comedy–drama film * ''Airborne'' (1998 film), an action film sta ...

** (i) Airborne electronic warfare ** (i)

All Elite Wrestling All Elite Wrestling (AEW) is an American professional wrestling promotion based in Jacksonville, Florida. It is considered the second largest wrestling promotion in the United States behind WWE. AEW is owned by Shahid Khan and his son Tony, w ...

(US professional wrestling promotion)

AF

* af – (s)

Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gra ...

language (ISO 639-1 code) * aF – (s)

Attofarad The farad (symbol: F) is the unit of electrical capacitance, the ability of a body to store an electrical charge, in the International System of Units (SI). It is named after the English physicist Michael Faraday (1791–1867). In SI base unit ...

* AF ** (s)

Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...

(FIPS 10-4 country code; ISO 3166 digram) ** (i) Air Force ** As fuck * AFA ** (i) U.S.

Air Force Academy An air force academy or air academy is a national institution that provides initial officer training, possibly including undergraduate level education, to air force officer cadets who are preparing to be commissioned officers in a national air for ...

** ''

Asociación del Fútbol Argentino The Argentine Football Association ( es, Asociación del Fútbol Argentino, ; AFA) is the governing body of football in Argentina based in Buenos Aires. It organises the main divisions of Argentine league system (from Primera División to Torn ...

'' (Spanish, "Argentine

Football Football is a family of team sports that involve, to varying degrees, kicking a ball to score a goal. Unqualified, the word ''football'' normally means the form of football that is the most popular where the word is used. Sports commonly c ...

Association") * AFAIC – (i) As Far As I'm Concerned * AFAICT – (i) As Far As I Can Tell * AFAIK – (i) As Far As I Know * AFAIR – (i) As Far As I Remember/Recall * AFAM ** (i/a) '' Associazione Friulana di Astronomia e Meteorologia'' (Italian, "Friuli Association of Astronomy and Meteorology") ** (p) Department of African and Afro-American Studies, University of North Carolina at Chapel Hill — notable for its links to the school's academic-athletic scandal in the 2010s * AFATDS – (i)

Advanced Field Artillery Tactical Data System Project Manager Mission Command (or PM MC) is a component of Program Executive Office Command Control Communications Tactical, Program Executive Office Command, Control and Communications-Tactical in the United States Army. PM MC develops, deplo ...

* AFC ** (i)

American Football Conference The American Football Conference (AFC) is one of the two conferences of the National Football League (NFL), the highest professional level of American football in the United States. The AFC and its counterpart, the National Football Conference ...

** Approved for construction **

Asian Football Confederation The Asian Football Confederation is the governing body of association football, beach soccer, and futsal in some countries/territories in Asia and Oceania. It has 47 member countries most of which are located in Asia. Australia, formerly in ...

AFCEA Armed Forces Communications & Electronics Association International (AFCEA), established in 1946, is a nonprofit membership association serving the military, government, industry, and academia as a forum for advancing professional knowledge and re ...

– (i) Armed Forces Communications and Electronics Association * AfD ** (i) '' Allianz für Deutschland'' ("Alliance for Germany"), former political alliance in East Germany ** ''

Alternative für Deutschland Alternative for Germany (german: link=no, Alternative für Deutschland, AfD; ) is a right-wing populist * * * * * * * political party in Germany. AfD is known for its opposition to the European Union, as well as immigration to Germany. ...

'' ("Alternative for Germany"), current German political party * AFD ** (i) Active Format Description, a technical standard for TV or set-top box decoders ** Advanced Format Drive, a type of computing storage device ** Adjustable-frequency drive ** Adult Film Database, web-based database of adult cinema ** ''

Agence française de développement The French Development Agency (french: Agence française de développement, AFD) is a public financial institution that implements the policy defined by the French Government. It works to fight poverty and promote sustainable development. This pub ...

'' ("French Development Agency"), a French international development agency ** '' Alliance des forces démocratiques'' (French; "Alliance of Democratic Forces"), an Ivorian political alliance **

Alliance for Freedom and Democracy The Alliance for Freedom and Democracy (AFD) is an Ethiopian political alliance formed 22 May 2006 from the Oromo Liberation Front (OLF), the Ogaden National Liberation Front (ONLF), the Sidama National Liberation Front (SNLF), the Coalition for U ...

, an Eritrean political party * AFDB – (i)

African Development Bank The African Development Bank Group (AfDB) or (BAD) is a multilateral development finance institution headquartered in Abidjan, Ivory Coast, since September 2014. The AfDB is a financial provider to African governments and private companies ...

AFES AFES may refer to: * Alaska Agricultural and Forestry Experiment Station The Alaska Agricultural and Forestry Experiment Station (AFES) was established in 1898 in Sitka, Alaska, also the site of the first agricultural experiment farm in what was t ...

– (i) Automatic Fire Extinguishing System *

AFG AFG may refer to: * Afghanistan, ISO 3166-1 code * AFG Arena, St. Gallen, Switzerland * Afghan Sign Language Afghan Sign Language is the deaf sign language of Jalalabad in eastern Afghanistan, possibly with some presence in Kabul. It has been ...

– (s)

(ISO 3166 trigram) * AFGAM – (i) Amazon Facebook Google Apple Microsoft *

AFI AFI may refer to: * ''Address-family identifier'', a 16 bit field of the Routing Information Protocol * Ashton Fletcher Irwin, an Australian drummer * AFI (band), an American rock band ** ''AFI'' (2004 album), a retrospective album by AFI rele ...

** (s)

French Territory of the Afars and Issas The French Territory of the Afars and the Issas (FTAI; french: Territoire français des Afars et des Issas) was the name given to present-day Djibouti between 1967 and 1977, while it was still an overseas territory of France. The area was former ...

(ISO 3166 trigram; obsolete since 1977) ** (i) "Agencia Federal de Investigaciónes" (México) * AFIS ** (a) Automated Fingerprint Identification System **

American Forces Information Service The American Forces Information Service (AFIS) was a United States Department of Defense-providing news service that supplied information about the U.S. military. History In 1952 the Office of the Secretary of Defense established the Office of ...

* AFIST – (i) Abrams Full Crew Interactive Skills Trainer * AFJ – (i)

April Fool's Joke April Fools' Day or All Fools' Day is an annual custom on 1 April consisting of practical jokes and hoaxes. Jokesters often expose their actions by shouting "April Fools!" at the recipient. Mass media can be involved in these pranks, which may ...

* AFK – (i) Away From Keyboard (Internet chat abbreviation) *

AFL AFL may refer to: Sports * American Football League (AFL), a name shared by several separate and unrelated professional American football leagues: ** American Football League (1926) (a.k.a. "AFL I"), first rival of the National Football Leagu ...

** (i)

American Federation of Labor The American Federation of Labor (A.F. of L.) was a national federation of labor unions in the United States that continues today as the AFL-CIO. It was founded in Columbus, Ohio, in 1886 by an alliance of craft unions eager to provide mutu ...

** American Football League — either the 1960s league that merged into the National Football League, or one of several other leagues of American football **

Arena Football League The Arena Football League (AFL) was a professional arena football league in the United States. It was founded in 1986, but played its first official games in the 1987 season, making it the third longest-running professional football league in ...

Australian Football League The Australian Football League (AFL) is the only fully professional competition of Australian rules football. Through the AFL Commission, the AFL also serves as the sport's governing body and is responsible for controlling the laws of the gam ...

AFL–CIO The American Federation of Labor and Congress of Industrial Organizations (AFL–CIO) is the largest federation of unions in the United States. It is made up of 56 national and international unions, together representing more than 12 million ac ...

– (i
American Federation of Labor – Congress of Industrial Organizations
*

AFLAC Aflac Inc. (American Family Life Assurance Company) is an American insurance company and is the largest provider of supplemental insurance in the United States. The company was founded in 1955 and is based in Columbus, Georgia. In the U.S., A ...

– (a) American Family Life Assurance Company of Columbus * AFM – (i) Army Field Manual (UK; the U.S. more frequently uses just FM) –

Atomic Force Microscope Atomic force microscopy (AFM) or scanning force microscopy (SFM) is a very-high-resolution type of scanning probe microscopy (SPM), with demonstrated resolution on the order of fractions of a nanometer, more than 1000 times better than the op ...

– Aviation Fleet Maintenance * AFN – (s) Afghani (

currency code) * AFO – (i)

Association of Field Ornithologists The Association of Field Ornithologists (AFO) is an American ornithological society, with a strong focus on field studies and banding, priding itself as serving as a bridge between professional and amateur ornithologists. It was founded in 1922 ...

AFOSR The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of aerospace warfighting technologies, pl ...

– (i) U.S. Air Force Office of Scientific Research * AFP ** (i) ''

Agence France-Presse Agence France-Presse (AFP) is a French international news agency headquartered in Paris, France. Founded in 1835 as Havas, it is the world's oldest news agency. AFP has regional headquarters in Nicosia, Montevideo, Hong Kong and Washington, D.C ...

'' (French, "French Press Agency") ** Australian Federal Police * AFQT – (i) Armed Forces Qualification Test *

afr AFR may refer to: * ''AFR'' (film), a 2007 film * Afrikaans language, ISO-639 code * Air France, ICAO code * Air–fuel ratio * Armed Forces Radio * Alternate frame rendering * American Family Radio * American Film Renaissance * American flag rug ...

– (s)

language (ISO 639-2 code) * AFRC – (i)

Air Force Reserve Command The Air Force Reserve Command (AFRC) is a major command (MAJCOM) of the United States Air Force, with its headquarters at Robins Air Force Base, Georgia. It is the federal Air Reserve Component (ARC) of the U.S. Air Force, consisting of commiss ...

AFRL The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of aerospace warfighting technologies, pl ...

– (i)

Air Force Research Laboratory The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of aerospace warfighting technologies, pl ...

* AFROTC – (i)

Air Force Reserve Officer Training Corps The Air Force Reserve Officer Training Corps (AFROTC) is one of the three primary commissioning sources for officers in the United States Air Force and United States Space Force, the other two being the United States Air Force Academy (USAF ...

* AFRRI – (i, U.S.) Armed Forces Radiobiology Research Institute *

AFRTS The American Forces Network (AFN) is a government television and radio broadcast service the U.S. military provides to those stationed or assigned overseas. Headquartered at Fort George G. Meade, Maryland, AFN's broadcast operations, which i ...

– (i)

Armed Forces Radio and Television Service The American Forces Network (AFN) is a government television and radio broadcast service the U.S. military provides to those stationed or assigned overseas. Headquartered at Fort George G. Meade, Maryland, AFN's broadcast operations, which i ...

* AFS ** (i) Active Front Steering ** Air Facility Sub-System ** Amniotic Fluid-derived Stem cell * AFS&A or AFSA – (i) U.S. Air Force Studies and Analysis * AFSC ** (i) U.S. Air Force Staff College (obsolete; replaced by JFSC) ** U.S. Air Force Systems Command * AFSCN – (i) U.S. Air Force Satellite Control Network *

AFSPC Space Operations Command (SpOC) is the United States Space Force's space operations, cyber operations, and intelligence field command. It is headquartered at Peterson Space Force Base, Colorado and serves as the U.S. Space Force's service com ...

– (i) Air Force Space Command * AFT – American Farmland Trust * AFV – (i)

armoured fighting vehicle An armoured fighting vehicle (AFV) is an armed combat vehicle protected by armour, generally combining operational mobility with offensive and defensive capabilities. AFVs can be wheeled or tracked. Examples of AFVs are tanks, armoured car ...

* AFWA ** (a) Air Force Weather Agency ** Association of Fish and Wildlife Agencies

AG

* ag – (s)

Attogram To help compare different orders of magnitude, the following lists describe various mass levels between 10−59 kg and 1052 kg. The least massive thing listed here is a graviton, and the most massive thing is the observable universe. ...

* Ag – (s)

Silver Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, whi ...

(Latin ''argentum'') * AG ** (i) air gunner ** ''

Aktiengesellschaft (; abbreviated AG, ) is a German word for a corporation limited by Share (finance), share ownership (i.e. one which is owned by its shareholders) whose shares may be traded on a stock market. The term is used in Germany, Austria, Switzerland (wh ...

'' (

German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

, "incorporated") ** (s)

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

(FIPS 10-4 country code) **

(ISO 3166 digram) **

Assemblies of God The Assemblies of God (AG), officially the World Assemblies of God Fellowship, is a group of over 144 autonomous self-governing national groupings of churches that together form the world's largest Pentecostal denomination."Assemblies of God". ...

AGA Aga or AGA may refer to: Business * Architectural Glass and Aluminum (AGA), a glazing contractor, established in 1970 * AGA (automobile), ''Autogen Gasaccumulator AG'', 1920s German car company *AGA AB, ''Aktiebolaget Svenska Gasaccumulator'', a ...

** (a/i) AB Gas-accumulator ("ah-gah", Swedish company) **

Advanced Graphics Architecture Amiga Advanced Graphics Architecture (AGA) is the third-generation Amiga graphic chipset, first used in the Amiga 4000 in 1992. Before release AGA was codenamed Pandora by Commodore International. AGA was originally called AA for Advanced Archit ...

AGARD The Advisory Group for Aerospace Research and Development (AGARD) was an agency of NATO that existed from 1952 to 1996. AGARD was founded as an Agency of the NATO Military Committee. It was set up in May 1952 with headquarters in Neuilly sur Sein ...

– (a) Advisory Group for Aerospace Research and Development * AGARDograph – (p) Advanced Guidance for Alliance Research and Development publication * AGASA – (a)

Akeno Giant Air Shower Array The Akeno Giant Air Shower Array (AGASA) is a very large surface array designed to study the origin of ultra-high-energy cosmic rays. Located in the town of Akeno in Yamanashi prefecture, Japan, it covers an area of 100 km2 and consists of 111 ...

(cosmic ray detector) * AGB – (i) Internal

Nintendo is a Japanese Multinational corporation, multinational video game company headquartered in Kyoto, Japan. It develops video games and video game consoles. Nintendo was founded in 1889 as by craftsman Fusajiro Yamauchi and originally produce ...

initialism (''Advanced Game Boy'') for

Game Boy Advance The (GBA) is a 32-bit handheld game console developed, manufactured and marketed by Nintendo as the successor to the Game Boy Color. It was released in Japan on March 21, 2001, in North America on June 11, 2001, in the PAL region on June 22, 2 ...

* AGC ** (i) Apollo Guidance Computer ** Automatic Gain Control * AGC – (i) Adjutant General's Corps (British Army) * AGDC – (i) Australian Game Developers' Conference *

AGI Silver iodide is an inorganic compound with the formula Ag I. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a gray coloration. The silver contamination arises because AgI is hig ...

– (i) Auxiliary Group Intelligence * AGL – (i) Above Ground Level * AGM – (i) Annual General Meeting * AGN – (i)

Active Galactic Nucleus An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over at least some portion of the electromagnetic spectrum with characteristics indicating that the luminosity is not prod ...

* AGO – (s)

Angola , national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordina ...

(ISO 3166 trigram) * AGP – (i)

Accelerated Graphics Port Accelerated Graphics Port (AGP) is a parallel expansion card standard, designed for attaching a video card to a computer system to assist in the acceleration of 3D computer graphics. It was originally designed as a successor to PCI-type connect ...

AGRICOLA Agricola, the Latin word for farmer, may also refer to: People Cognomen or given name :''In chronological order'' * Gnaeus Julius Agricola (40–93), Roman governor of Britannia (AD 77–85) * Sextus Calpurnius Agricola, Roman governor of the mi ...

– (a) Agriculture Online Access * AGS – (i) Alaska Ground Station (LandSat) * AGTS – (i) Advanced Gunnery Training System * AGU – (i)

American Geophysical Union The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's act ...

* AGW – (i) Autonomous Guided Weapon

AH

* aH – (s) Attohenry * Ah – (s) Ampere hour * AH – (i) Attack Helicopter * AHA – (i)

American Heart Association The American Heart Association (AHA) is a nonprofit organization in the United States that funds cardiovascular medical research, educates consumers on healthy living and fosters appropriate cardiac care in an effort to reduce disability and death ...

* AHCPR – (i)

Agency for Health Care Policy and Research The Agency for Healthcare Research and Quality (AHRQ; pronounced "ark" by initiates and often "A-H-R-Q" by the public) is one of twelve agencies within the United States Department of Health and Human Services (HHS). The agency is headquartered i ...

(obsolete; replaced with

AHRQ The Agency for Healthcare Research and Quality (AHRQ; pronounced "ark" by initiates and often "A-H-R-Q" by the public) is one of twelve agencies within the United States Department of Health and Human Services (HHS). The agency is headquartered i ...

) * AHEC – (i) Australian Health Ethics Committee * AHPCRC – (i) Army High Performance Computing Research Center * AHQ – Air Headquarters *

– (i)

Agency for Healthcare Research and Quality The Agency for Healthcare Research and Quality (AHRQ; pronounced "ark" by initiates and often "A-H-R-Q" by the public) is one of twelve agencies within the United States Department of Health and Human Services (HHS). The agency is headquartered i ...

* AHS – (i)

American Housing Survey The American Housing Survey (AHS) is a statistical survey funded by the United States Department of Housing and Urban Development (HUD) and conducted by the U.S. Census Bureau. It is the largest regular national housing sample survey in the United ...

AI

* AI ** (i) Air Interdiction **

Amnesty International Amnesty International (also referred to as Amnesty or AI) is an international non-governmental organization focused on human rights, with its headquarters in the United Kingdom. The organization says it has more than ten million members and sup ...

Artificial Insemination Artificial insemination is the deliberate introduction of sperm into a female's cervix or uterine cavity for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse. It is a fertility treatment ...

Artificial Intelligence Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...

** (s)

Anguilla Anguilla ( ) is a British Overseas Territory in the Caribbean. It is one of the most northerly of the Leeward Islands in the Lesser Antilles, lying east of Puerto Rico and the Virgin Islands and directly north of Saint Martin. The territo ...

(ISO 3166 digram) *

AIA AIA or A.I.A. or Aia may refer to: Aia * Aia, a small town in the Basque province of Gipuzkoa, Spain * Aia, current Kutaisi, ancient capital of Colchis * Aia, another name for Aea (Malis), an ancient town in Greece * ''Aia'', the collected ed ...

** (i)

Aerospace Industries Association The Aerospace Industries Association (AIA) is an American trade association representing manufacturers and suppliers of civil, military, and business aircraft, helicopters, UAVs, space systems, aircraft engines, missiles, material, and related ...

American Institute of Architects The American Institute of Architects (AIA) is a professional organization for architects in the United States. Headquartered in Washington, D.C., the AIA offers education, government advocacy, community redevelopment, and public outreach to su ...

** (s)

(ISO 3166 trigram) *

AIAA The American Institute of Aeronautics and Astronautics (AIAA) is a professional society for the field of aerospace engineering. The AIAA is the U.S. representative on the International Astronautical Federation and the International Council of t ...

– (i) American Institute of Aeronautics and Astronautics *

AIC AIC may refer to: Arts and entertainment * Alice in Chains, American rock band * Alice in Chains: AIC 23, a 2013 mockumentary * Anime International Company, a Japanese animation studio * Art Institute of Chicago, an art museum in Chicago Busin ...

** (i)

African Independent Church An African-initiated church (AIC) is a Christian church independently started in Africa by Africans rather than chiefly by missionaries from another continent. Nomenclature A variety of overlapping terms exist for these forms of Christianity: ...

** Animal Identification Coordinator * AICD – (i)

Australian Institute of Company Directors The Australian Institute of Company Directors (AICD) is a non-profit membership organization for directors. The AICD is a founding member of the Global Network of Director Institutes (GNDI). History The origins of the AICD can be traced ba ...

* AICMFP – (i) And I Claim My Five Pounds *

AID In international relations, aid (also known as international aid, overseas aid, foreign aid, economic aid or foreign assistance) is – from the perspective of governments – a voluntary transfer of resources from one country to another. Ai ...

– (i) U.S.

Agency for International Development The United States Agency for International Development (USAID) is an independent agency of the U.S. federal government that is primarily responsible for administering civilian foreign aid and development assistance. With a budget of over $27 ...

AIDS Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual m ...

– (a) Acquired Immune Deficiency Syndrome * AIHW – Australian Institute of Health and Welfare * AIM – many, including

AOL Instant Messenger AIM (AOL Instant Messenger) was an instant messaging and presence computer program created by AOL, which used the proprietary OSCAR instant messaging protocol and the TOC protocol to allow registered users to communicate in real time. AIM w ...

Australian Institute of Management The Australian Institute of Management Education and Training Pty Ltd, commonly known as AIM or AIMET, is an Australian education provider. Its courses include business, management and leadership. AIM offers short courses, nationally accredited qu ...

; ''see entry'' *

AIMP AIMP (Artem Izmaylov Media Player) is a freeware audio player for Windows and Android, originally developed by Russian developer Artem Izmaylov ( rus, Артём Измайлов, Artyom Izmajlov).

– (i) Aurora Incremental Modernization Project * AIPAC – (i) American Israel Public Affairs Committee *

AIR The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...

– (i) Aircraft Inventory Record * AIRFA – (a)

American Indian Religious Freedom Act The American Indian Religious Freedom Act, Public Law No. 95–341, 92 Stat. 469 (Aug. 11, 1978) (commonly abbreviated to AIRFA), codified at , is a United States federal law, enacted by joint resolution of the Congress in 1978. Prior to the ac ...

* AIRS – (a/i) Aerometric Information Retrieval System (obsolete; replaced with AFS) *

AIS AIS may refer to: Medicine * Abbreviated Injury Scale, an anatomical-based coding system to classify and describe the severity of injuries * Acute ischemic stroke, the thromboembolic type of stroke * Androgen insensitivity syndrome, an intersex ...

** (i)

Australian Institute of Sport The Australian Institute of Sport (AIS) is a high performance sports training institution in Australia. The Institute's headquarters were opened in 1981 and are situated in the northern suburb of Bruce, Canberra. The AIS is a division of the ...

** Automatic Identification System * AISB – (i) (British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour

AJ

* aJ – (s)

Attojoule The joule ( , ; symbol: J) is the unit of energy in the International System of Units (SI). It is equal to the amount of work done when a force of 1 newton displaces a mass through a distance of 1 metre in the direction of the force applied. ...

* AJ – (s)

Azerbaijan Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of th ...

(FIPS 10-4 country code) *

Ajax Ajax may refer to: Greek mythology and tragedy * Ajax the Great, a Greek mythological hero, son of King Telamon and Periboea * Ajax the Lesser, a Greek mythological hero, son of Oileus, the king of Locris * ''Ajax'' (play), by the ancient Greek ...

– (a) Asynchronous JavaScript And XML * AJD – (i) Astronomical Julian day * AJP – (i) Allied Joint Publication *

AJPW (AJPW/AJP) or simply All Japan is a Japanese professional wrestling promotion established on October 21, 1972 when Giant Baba split away from the Japanese Wrestling Association and created his own promotion. Many wrestlers had left with Baba, ...

– (i)

All Japan Pro Wrestling (AJPW/AJP) or simply All Japan is a Japanese professional wrestling promotion established on October 21, 1972 when Giant Baba split away from the Japanese Wrestling Association and created his own promotion. Many wrestlers had left with Baba, ...

AK

* ak – (s)

Akan languages Akan may refer to: People and languages *Akan people, an ethnic group in Ghana and Côte d'Ivoire *Akan language, a language spoken by the Akan people *Kwa languages, a language group which includes Akan * Central Tano languages, a language group ...

(ISO 639-1 code) * aK – (s) Attokelvin * AK – (s)

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

(postal symbol) * aka – (s)

(ISO 639-2 code) * a.k.a. – (i) Also known as (i.e.:

alias Alias may refer to: * Pseudonym * Pen name * Nickname Arts and entertainment Film and television * ''Alias'' (2013 film), a 2013 Canadian documentary film * ''Alias'' (TV series), an American action thriller series 2001–2006 * ''Alias the ...

) * AKA – (i) Above knee amputation (orthopaedic usage) * AKDT – (p) Alaska Standard Daylight Saving Time (UTC−8 hours) *

AKST The Alaska Time Zone observes standard time by subtracting nine hours from Coordinated Universal Time (UTC−09:00). During daylight saving time its time offset is eight hours (UTC−08:00). The clock time in this zone is based on mean solar ti ...

– (p)

Alaska Standard Time The Alaska Time Zone observes standard time by subtracting nine hours from Coordinated Universal Time ( UTC−09:00). During daylight saving time its time offset is eight hours ( UTC−08:00). The clock time in this zone is based on mean so ...

(UTC−9 hours) * AKP – (i) '' Adalet ve Kalkınma Partisi'' ( Turkish, "Justice and Development Party")

AL

* aL – (s) Attolitre * Al – (s)

Aluminium Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. I ...

* AL ** (s)

Alabama (We dare defend our rights) , anthem = "Alabama (state song), Alabama" , image_map = Alabama in United States.svg , seat = Montgomery, Alabama, Montgomery , LargestCity = Huntsville, Alabama, Huntsville , LargestCounty = Baldwin County, Al ...

(postal symbol) **

Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and shares ...

(FIPS 10-4 country code; ISO 3166 digram) ** (i) ''

Anno Lucis Anno Lucis (“in the Year of Light”) is a dating system used in Masonic ceremonial or commemorative proceedings, which is equivalent to the Gregorian year plus 4000. It is similar to ''Anno Mundi''. Description For example, a date Anno Domini ...

'' (Latin, "Year of Light", in

Masonic Freemasonry or Masonry refers to Fraternity, fraternal organisations that trace their origins to the local guilds of Stonemasonry, stonemasons that, from the end of the 13th century, regulated the qualifications of stonemasons and their inte ...

tradition, most often seen on plaques bearing the founding dates of buildings, in years AD and years AL) *

ALA Ala, ALA, Alaa or Alae may refer to: Places * Ala, Hiiu County, Estonia, a village * Ala, Valga County, Estonia, a village * Ala, Alappuzha, Kerala, India, a village * Ala, Iran, a village in Semnan Province * Ala, Gotland, Sweden * Alad, S ...

– (s)

Åland Åland ( fi, Ahvenanmaa: ; ; ) is an Federacy, autonomous and Demilitarized zone, demilitarised region of Finland since 1920 by a decision of the League of Nations. It is the smallest region of Finland by area and population, with a size of 1 ...

(ISO 3166 trigram) * ALAP – (a) As Long/Late As Possible *

ALARM An alarm device is a mechanism that gives an audible, visual or other kind of alarm signal to alert someone to a problem or condition that requires urgent attention. Alphabetical musical instruments Etymology The word ''alarm'' comes from t ...

– (a) Air-Launched Anti-Radar Missile *

ALB The alb (from the Latin ''albus'', meaning ''white''), one of the liturgical vestments of the Roman Catholic, Anglican, Lutheran, Methodist, Presbyterian, Reformed and Congregational churches, is an ample white garment coming down to the ank ...

– (s)

(ISO 3166 trigram) *

ALCOA Alcoa Corporation (an acronym for Aluminum Company of America) is a Pittsburgh-based industrial corporation. It is the world's eighth-largest producer of aluminum. Alcoa conducts operations in 10 countries. Alcoa is a major producer of primary ...

Alcoa Alcoa Corporation (an acronym for Aluminum Company of America) is a Pittsburgh-based industrial corporation. It is the world's eighth-largest producer of aluminum. Alcoa conducts operations in 10 countries. Alcoa is a major producer of primary ...

– The

Aluminum Company of America Alcoa Corporation (an acronym for Aluminum Company of America) is a Pittsburgh-based industrial corporation. It is the world's eighth-largest producer of aluminum. Alcoa conducts operations in 10 countries. Alcoa is a major producer of primary ...

, NYSE:AA * ALD – (i) Accounting Line Designator (nuclear weapon targeting) * ALERT – (a) Advanced Linked Extended Reconnaissance and Targeting – Attack and Launch Early Reporting to Theatre * ALF ** (a) Africa Leadership Forum ** Alien Life Form (cf. ''ALF'' (TV series)) ** Animal Liberation Front * ALG – (s)

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

(IOC and FIFA trigram, but not ISO 3166) *

ALGOL ALGOL (; short for "Algorithmic Language") is a family of imperative computer programming languages originally developed in 1958. ALGOL heavily influenced many other languages and was the standard method for algorithm description used by the ...

– (p) ALGOrithmic Language *

ALL All or ALL may refer to: Language * All, an indefinite pronoun in English * All, one of the English determiners * Allar language (ISO 639-3 code) * Allative case (abbreviated ALL) Music * All (band), an American punk rock band * ''All'' (All al ...

– (s)

Albanian lek The lek (; indefinite singular ''lek'', definite plural ''lekët'', indefinite plural ''lekë''; sign: Lekë in Albanian or Lek in English, sometimes L; code: ALL) is the currency of Albania. Historically, it was subdivided 100 ''qintars'' (; ...

(

currency code) *

ALOA ''Aloa'' is a genus of tiger moths in the family Erebidae. Species * '' Aloa cardinalis'' (Butler, 1875) * ''Aloa ihlei'' Černý, 2009 * '' Aloa lactinea'' (Cramer, 1777) ''Aloa sensu lato'' * '' Aloa albistriga'' Walker, 1865 * '' Aloa c ...

– (i) Associated Locksmiths of America, Inc. *

ALOC ALOC may refer to:: *Air line of communication *Altered level of consciousness An altered level of consciousness is any measure of arousal other than normal. Level of consciousness (LOC) is a measurement of a person's arousability and responsiv ...

** (a) Air Lines Of Communication ** (a) Average Length of Calls * ALP – (i)

Australian Labor Party The Australian Labor Party (ALP), also simply known as Labor, is the major centre-left political party in Australia, one of two major parties in Australian politics, along with the centre-right Liberal Party of Australia. The party forms the f ...

ALPA Alpa was formerly a Switzerland, Swiss camera design company and manufacturer of 135 film, 35 mm Single-lens reflex camera, SLR cameras. The current owners bought the company name after bankruptcy of the original company and the company exists ...

– (a)

Air Line Pilots Association The Air Line Pilots Association, International (ALPA) is the largest pilot union in the world, representing more than 59,000 pilots from 35 U.S. and Canadian airlines. ALPA was founded on 27 July 1931 and is a member of the AFL-CIO and the Canadia ...

* ALS – (i)

Amyotrophic Lateral Sclerosis Amyotrophic lateral sclerosis (ALS), also known as motor neuron disease (MND) or Lou Gehrig's disease, is a neurodegenerative disease that results in the progressive loss of motor neurons that control voluntary muscles. ALS is the most comm ...

– Automatic Landing System * ALSHS – (a)

Abraham Low Self-Help Systems Abraham Low Self-Help Systems (ALSHS) is a non-profit organization formed from the merger of Recovery International and the Abraham Low Institute. ALSHS facilitates the estimated 600 worldwide Recovery International meetings and all projects forme ...

* ALSP – (i)

Aggregate Level Simulation Protocol The Aggregate Level Simulation Protocol (ALSP) is a protocol and supporting software that enables simulations to interoperate with one another. Replaced by the High Level Architecture (simulation) (HLA), it was used by the US military to link anal ...

* ALTE – (a)

Association of Language Testers in Europe The Association of Language Testers in Europe (ALTE) is an association of language exam providers in Europe. The ALTE (Association of Language Testers in Europe) "Can Do" project developed a simplified set of 400+ descriptors for language examinati ...

* ALTACS – (p) Automated decision Logic Tactical Air Combat Simulation

AM

* am ** (s)

Amharic language Amharic ( or ; (Amharic: ), ', ) is an Ethiopian Semitic languages, Ethiopian Semitic language, which is a subgrouping within the Semitic languages, Semitic branch of the Afroasiatic languages. It is spoken as a first language by the Amhara pe ...

(ISO 639-1 code) **

Attometre The following are examples of orders of magnitude for different lengths. __TOC__ Overview Detailed list To help compare different orders of magnitude, the following list describes various lengths between 1.6 \times 10^ metres and 10 ...

* Am – (s)

Americium Americium is a synthetic radioactive chemical element with the symbol Am and atomic number 95. It is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was na ...

* AM ** many, including

Amplitude Modulation Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to ...

and ''

Ante Meridiem The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin , translating to "before midday") and p.m. (from Latin , translating to "after midday"). For different opinions on represent ...

''; ''see entry'' ** (s)

Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ''Ox ...

(FIPS 10-4 country code; ISO 3166 digram) * AM1 – Airman 1st class * AMA ** (i)

American Medical Association The American Medical Association (AMA) is a professional association and lobbying group of physicians and medical students. Founded in 1847, it is headquartered in Chicago, Illinois. Membership was approximately 240,000 in 2016. The AMA's sta ...

** Australian Medical Association * AMAPS – (a) Aircraft, Missile, Avionics Performance Simulation *

AMC AMC may refer to: Film and television * AMC Theatres, an American movie theater chain * AMC Networks, an American entertainment company ** AMC (TV channel) ** AMC+, streaming service ** AMC Networks International, an entertainment company *** ...

** (i)

Adaptive modulation and coding Link adaptation, comprising adaptive coding and modulation (ACM) and others (such as Power Control), is a term used in wireless communications to denote the matching of the modulation, coding and other signal and protocol parameters to the conditi ...

(digital communications) ** U.S. Air Mobility Command **

American Motors Corporation American Motors Corporation (AMC; commonly referred to as American Motors) was an American automobile manufacturing company formed by the merger of Nash-Kelvinator Corporation and Hudson Motor Car Company on May 1, 1954. At the time, it was the ...

American Movie Classics AMC is an American multinational basic cable television channel that is the flagship property of AMC Networks. The channel's programming primarily consists of theatrically released films, along with a limited amount of original programming. T ...

(TV network; now known simply by the initials) ** U.S. Army Materiel Command * AMCB – (i) U.S. Army/Marine Corps Board *

AMD Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets. While it initially manufactur ...

** (i)

Advanced Micro Devices Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets. While it initially manufact ...

Age-related Macular Degeneration Macular degeneration, also known as age-related macular degeneration (AMD or ARMD), is a medical condition which may result in blurred or no vision in the center of the visual field. Early on there are often no symptoms. Over time, however, som ...

** (s) Armenian dram (

currency code) * AMF – (i) Afghan Military Force(s) * AMFOM – (i) Advanced Missile Fly Out Model ("am-fomm") * AMFR ** (i) Age-specific Marital Fertility Rate ** Amplitude Modulation Following Response * AMFRS ** (i) Advanced Multi-Function Radio Frequency System ** Automatic Multisensor Feature-based Recognition System *

amh AMH may refer to: Geography *''Academia Mexicana de la Historia'', the national academy of history, in Mexico *Alaska Marine Highway, ferry services along the southern coast of Alaska and to Washington state *AMH, IATA airport code for Arba Minch ...

– (s)

(ISO 639-2 code) * AML – (i) Acute Myeloid Leukaemia *

AMLCD An active-matrix liquid-crystal display (AMLCD) is a type of flat-panel display, the only viable technology for high-resolution TVs, computer monitors, notebook computers, tablet computers and smartphones with an LCD screen, due to low weight, ...

– (i) Active Matrix Liquid Crystal Display * AMLO ** (i)

Andrés Manuel López Obrador Andrés Manuel López Obrador (; born 13 November 1953), also known by his initials AMLO, is a Mexican politician who has been serving as the 65th president of Mexico since 1 December 2018. He previously served as Head of Government of Mex ...

(Mexican politician) ** Anti-Money Laundering Office — separate government agencies in

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

and

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

* AMO – (i) Atlantic Multidecadal Oscillation *

AMOLED AMOLED (active-matrix organic light-emitting diode, ) is a type of OLED display device technology. OLED describes a specific type of thin-film-display technology in which organic compounds form the electroluminescent material, and active matrix ...

– (i) Active-matrix organic light-emitting diode *

AMOS Amos or AMOS may refer to: Arts and entertainment * Amos Records, an independent record label established in Los Angeles, California, in 1968 * Amos (band), an American Christian rock band * ''Amos'' (album), an album by Michael Ray * ''Amos' ...

** (a)

Advanced MOrtar System Amos or AMOS may refer to: Arts and entertainment * Amos Records, an independent record label established in Los Angeles, California, in 1968 * Amos (band), an American Christian rock band * ''Amos'' (album), an album by Michael Ray * ''Amos' ...

Air Force Maui Optical and Supercomputing observatory The Air Force Maui Optical and Supercomputing observatory is an Air Force Research Laboratory (AFRL) operating location at Haleakala Observatory on Maui, Hawaii, with a twofold mission (). First, it conducts the research and development mission ...

AMP #REDIRECT Amp {{Redirect category shell, {{R from other capitalisation{{R from ambiguous page ...

** (i) Adenosine MonoPhosphate ** Automated Mission Planner ** Anak ng Puta ** (i) Ain't My Problem *

AMRAAM The AIM-120 Advanced Medium-Range Air-to-Air Missile, or AMRAAM (pronounced ), is an American beyond-visual-range air-to-air missile (BVRAAM) capable of all-weather day-and-night operations. It is 7 inches (18 cm) in diameter, and employs ...

– (a) Advanced Medium-Range Air-to-Air Missile * AMRDEC – (i) U.S. Aviation & Missile Research, Development, & Engineering Center * AMS ** (i) Agriculture Marketing Service **

American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...

AMSAA United States Army Materiel Systems Analysis Activity (AMSAA) is an analysis organization of the United States Army. AMSAA's overall goal is to provide soldiers with the best U.S. Army materiel possible. AMSAA supports the U.S. Army by conducting ...

– (i/a) U.S. Army Materiel Systems Analysis Activity * AMSB – (i) Aix Maurienne Savoie Basket (French basketball club) * AMSO – (i/a) U.S. Army Model and Simulation Office * AMSU – Advanced Microwave Sounding Unit *

AMTE Amte is an Indian surname. Notable people with the surname include: *Baba Amte (1914–2008), Indian social worker and activist, particularly in serving people with leprosy *Mandakini Amte, Indian doctor and social worker *Prakash Amte Prakash ...

– (i) UK

Admiralty Marine Technology Establishment The Admiralty Marine Technology Establishment was formed in 1977 by the merger of the Admiralty Experiment Works, the Admiralty Materials Laboratory, the Admiralty Research Laboratory, the Central Dockyard Laboratory, the Naval Construction Rese ...

(1977–1984)

AN

* an – (s)

Aragonese language Aragonese ( ; in Aragonese) is a Romance language spoken in several dialects by about 12,000 people as of 2011, in the Pyrenees valleys of Aragon, Spain, primarily in the comarcas of Somontano de Barbastro, Jacetania, Alto Gállego, Sobrarbe, ...

(ISO 639-1 code) * aN – (s) Attonewton * AN ** (s)

(FIPS 10-4 country code) **

Netherlands Antilles nl, In vrijheid verenigd"Unified by freedom" , national_anthem = , common_languages = Dutch English Papiamento , demonym = Netherlands Antillean , capital = Willemstad , year_start = 1954 , year_end = 2010 , date_start = 15 December , ...

(ISO 3166 digram) * ANA ** (i) Administration for Native Americans ** Afghan National Army **

All Nippon Airways , also known as ANA (''Ē-enu-ē'') or is an airline in Japan. Its headquarters are located in Shiodome City Center in the Shiodome area of Minato ward of Tokyo. It operates services to both domestic and international destinations and had m ...

** Anti-Nuclear Anti-body ** (a)

Australian National Airways Australian National Airways (ANA) was Australia's predominant aerial carrier from the mid-1930s to the early 1950s. The Holyman's Airways period On 19 March 1932 Flinders Island Airways began a regular aerial service using the Desoutter Mk.I ...

Australian Natives' Association The Australian Natives' Association (ANA) was a mutual society founded in Melbourne, Australia in April 1871. It was founded by and for the benefit of native-born white Australians and membership was restricted exclusively to that group. The A ...

ANC The African National Congress (ANC) is a social-democratic political party in South Africa. A liberation movement known for its opposition to apartheid, it has governed the country since 1994, when the first post-apartheid election install ...

– (i)

African National Congress The African National Congress (ANC) is a Social democracy, social-democratic political party in Republic of South Africa, South Africa. A liberation movement known for its opposition to apartheid, it has governed the country since 1994, when ...

AND or AND may refer to: Logic, grammar, and computing * Conjunction (grammar), connecting two words, phrases, or clauses * Logical conjunction in mathematical logic, notated as "∧", "⋅", "&", or simple juxtaposition * Bitwise AND, a boolea ...

– (s)

(ISO 3166 trigram) *

ANFO ANFO ( ) (or AN/FO, for ammonium nitrate/fuel oil) is a widely used bulk industrial explosive. It consists of 94% porous prilled ammonium nitrate (NH4NO3) (AN), which acts as the oxidizing agent and absorbent for the fuel, and 6% number 2 fue ...

– (i) Ammonium nitrate/fuel oil (explosive) * ANG ** (i)

Air National Guard The Air National Guard (ANG), also known as the Air Guard, is a federal military reserve force of the United States Air Force, as well as the air militia of each U.S. state, the District of Columbia, the Commonwealth of Puerto Rico, and the ter ...

** (s)

Angola , national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordina ...

(IOC and FIFA trigram, but not ISO 3166) ** (s) Netherlands Antillian

guilder Guilder is the English translation of the Dutch and German ''gulden'', originally shortened from Middle High German ''guldin pfenninc'' " gold penny". This was the term that became current in the southern and western parts of the Holy Roman Emp ...

(

currency code) * ANGLiCo – (p) Air/Naval Gunfire Liaison Company * ANL – (i) Argonne National Laboratory * ANM – (i) Acoustic Noise Monitor *

ANOVA Analysis of variance (ANOVA) is a collection of statistical models and their associated estimation procedures (such as the "variation" among and between groups) used to analyze the differences among means. ANOVA was developed by the statistician ...

– (p) ANalysis Of VAriance *

ANS Ans or ANS or ''variation'', may refer to: Places * Ans, Belgium, a municipality in Belgium * Ans, Denmark, a village in Denmark * Angus, Scotland, UK; a council area by its Chapman code * Ainsdale railway station, England, UK (by station code ...

– (i) Applied and Natural Sciences *

ANSI The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...

– (a)

American National Standards Institute The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...

* ANTM – (i) ''

America's Next Top Model ''America's Next Top Model'' (abbreviated ''ANTM'' and ''Top Model'') is an American reality television series and interactive competition in which a number of aspiring models compete for the title of "America's Next Top Model" and a chance to b ...

'' *

ANT Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of ...

** (s)

(ISO 3166 trigram) **

(IOC trigram, but not ISO 3166 or FIFA) * ANTY – Acronyms, No Thank You *

ANWR The Arctic National Wildlife Refuge (ANWR or Arctic Refuge) is a national wildlife refuge in northeastern Alaska, United States on traditional Gwich'in lands. It consists of in the Alaska North Slope region. It is the largest national wildli ...

– (i)

Arctic National Wildlife Refuge The Arctic National Wildlife Refuge (ANWR or Arctic Refuge) is a national wildlife refuge in northeastern Alaska, United States on traditional Gwich'in lands. It consists of in the Alaska North Slope region. It is the largest national wildli ...

ANZ ANZ may refer to: People * Anz (musician), a British DJ and electronic musician Banks * ANZ (bank), Australia and New Zealand Banking Group Limited, the fourth-largest bank in Australia ** ANZ Bank New Zealand, the largest bank in New Zealand ** ...

– (s)

Australia and New Zealand Banking Group The Australia and New Zealand Banking Group Limited (ANZ) is an Australian multinational banking and financial services company headquartered in Melbourne, Victoria. It is Australia's second-largest bank by assets and fourth-largest bank by ma ...

ANZAC The Australian and New Zealand Army Corps (ANZAC) was a First World War army corps of the Mediterranean Expeditionary Force. It was formed in Egypt in December 1914, and operated during the Gallipoli campaign. General William Birdwood comma ...

– (a)

Australian and New Zealand Army Corps The Australian and New Zealand Army Corps (ANZAC) was a First World War army corps of the Mediterranean Expeditionary Force. It was formed in Egypt in December 1914, and operated during the Gallipoli campaign. General William Birdwood comma ...

AO

* AO ** (s)

Angola , national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordina ...

(FIPS 10-4 country code; ISO 3166 digram) ** (i) Approach Officer (submarine) ** Area of Operations * AOA ** (i)

Air Officer An air officer is an air force officer of the rank of air commodore or higher. Such officers may be termed "officers of air rank". While the term originated in the Royal Air Force, air officers are also to be found in many Commonwealth nations ...

in charge of Administration ** Argonne National Laboratory ** (s) Angolan

kwanza The kwanza (sign: Kz; ISO 4217 code: ) is the currency of Angola. Four different currencies using the name kwanza have circulated since 1977. The currency derives its name from the Kwanza River (Cuanza, Coanza, Quanza). Overview First kwanza ...

(

currency code) ** (i) Award Of Arms (heraldry) **

Angle of Attack In fluid dynamics, angle of attack (AOA, α, or \alpha) is the angle between a reference line on a body (often the chord line of an airfoil) and the vector representing the relative motion between the body and the fluid through which it is m ...

(fluid dynamics) *

AOC Alexandria Ocasio-Cortez (; ; born October 13, 1989), also known by her initials AOC, is an American politician and activist. She has served as the U.S. representative for New York's 14th congressional district since 2019, as a member of ...

** (i) Air Operations Centre **

Commanding **

Alexandria Ocasio-Cortez Alexandria Ocasio-Cortez (; ; born October 13, 1989), also known by her initials AOC, is an American politician and activist. She has served as the U.S. representative for New York's 14th congressional district since 2019, as a member of th ...

(American politician) * AOC in C –

Commanding in Chief * AOD – (i)

Adrenalin O.D. Adrenalin O.D. was an American hardcore punk band from New Jersey that existed from 1981 to 1990. They are best known for playing extremely fast music accompanied by humorous lyrics. History Adrenalin O.D. formed in October 1981, from the demis ...

(punk rock band) * AOE – Area of Effect * AOI ** (i) Angle Of Incidence **

Arab Organization for Industrialization The Arab Organization for Industrialization (AOI) ( ar, الهيئة العربية للتصنيع) is an Egypt-based Arab military organization established in 1975 by Egypt, Saudi Arabia, United Arab Emirates and Qatar to supervise the collecti ...

* AOL – (i) America OnLine * AOR – (i) Area of Responsibility * AOSTH – (i) ''

Adventures of Sonic the Hedgehog ''Adventures of Sonic the Hedgehog'' is an animated series that was based on the '' Sonic the Hedgehog'' video game series produced by Sega of America, DIC Animation City, Bohbot Entertainment and the Italian studio Reteitalia S.p.A. in associ ...

'' * AOTS – (i) ''

Attack of the Show! ''Attack of the Show!'' (''AOTS'') is an American live television program and that aired on G4. AOTS features segments on pop culture, video games, and movies. After an initial run from 2005 to 2013 (which originally aired from 2005 until 2013 ...

'' * AOU – (i)

American Ornithologists' Union The American Ornithological Society (AOS) is an ornithological organization based in the United States. The society was formed in October 2016 by the merger of the American Ornithologists' Union (AOU) and the Cooper Ornithological Society. Its m ...

AP

* AP ** (i)

Advanced Placement Advanced Placement (AP) is a program in the United States and Canada created by the College Board which offers college-level curricula and examinations to high school students. American colleges and universities may grant placement and course ...

** Air Publication ** (s)

Andhra Pradesh Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to the ...

(Indian state code) ** (s) Armed Forces Pacific (postal symbol) ** (i)

Associated Press The Associated Press (AP) is an American non-profit news agency headquartered in New York City. Founded in 1846, it operates as a cooperative, unincorporated association. It produces news reports that are distributed to its members, U.S. newspa ...

** Auto Pilot * APA – ** (i)

Acolytes Protection Agency The Acolytes Protection Agency (APA) was an American professional wrestling tag team who consisted of Bradshaw (John Layfield) and Faarooq (Ron Simmons). They wrestled for the American promotion World Wrestling Federation/Entertainment (WWF/E) b ...

(professional wrestling tag team) **

American Psychiatric Association The American Psychiatric Association (APA) is the main professional organization of psychiatrists and trainee psychiatrists in the United States, and the largest psychiatric organization in the world. It has more than 37,000 members are involv ...

American Psychological Association The American Psychological Association (APA) is the largest scientific and professional organization of psychologists in the United States, with over 133,000 members, including scientists, educators, clinicians, consultants, and students. It ha ...

(see also

APA style APA style (also known as APA format) is a writing style and format for academic documents such as scholarly journal articles and books. It is commonly used for citing sources within the field of behavioral and social sciences, including sociol ...

, a writing format developed by this body) * APB – (i)

All Points Bulletin An all-points bulletin (APB) is an electronic information broadcast sent from one sender to a group of recipients, to rapidly communicate an important message.Reiter, E. (1970). Police strive to provide protection machines lend valuable assista ...

(police jargon) * APC ** (i) Armoured Personnel Carrier ** Armour Piercing Capped (ammunition) *

APEC The Asia-Pacific Economic Cooperation (APEC ) is an inter-governmental forum for 21 member economies in the Pacific Rim that promotes free trade throughout the Asia-Pacific region.

– (a)

Asia Pacific Economic Cooperation The Asia-Pacific Economic Cooperation (APEC ) is an inter-governmental forum for 21 member economies in the Pacific Rim that promotes free trade throughout the Asia-Pacific region.

* APCNR – (i) Armour-Piercing, Composite Non-Rigid (ammunition) * APCR (disambiguation), APCR – (i) Armour-Piercing, Composite Rigid (ammunition) * APDS (disambiguation), APDS – (i) Armour-Piercing, Discarding-Sabot (ammunition) * APEDS – (a) AMSAA Performance Estimates Data System * APEX (disambiguation), APEX – (p) Applied Physics Express * APFSDS – (i) Armour-Piercing, Fin-Stabilised, Discarding Sabot (ammunition) * APHA – (i) American Public Health Association * APHE – (i) Armour-Piercing, High Explosive (ammunition) * APHIS – (a) Animal and Plant Health Inspection Service * API – (i) Application Programming Interface * APL (disambiguation), APL ** (i) A Programming Language ** Acute Promyeloid Leukaemia ** Anti-Personnel Landmine ** Applied Physics Laboratory (Johns Hopkins University) * APM (disambiguation), APM – (i) Advanced Power Management * APNP – Certification, Licensure, and Credentialing for the New Nurse Practitioner in Wisconsin#Licensure, Advanced Practice Nurse Prescriber * APOD – (i) Aerial Port (Airport) Of Debarkation * APOE (disambiguation), APOE – (i) Aerial Port (Airport) Of Embarkation * Apache Point Observatory Lunar Laser-ranging Operation, APOLLO – (a) Apache Point Observatory Lunar Laser-ranging Operation * APP (disambiguation), APP – (i) Allied Procedural Publication * APR (disambiguation), APR – (i) Annual Percentage Rate * APS (disambiguation), APS ** (i) Advanced Photo System (cf. APS-C, an image sensor format based on the size of the original APS film frame) ** American Physical Society ** Antiphospholipid Antibody Syndrome

AQ

* AQ (disambiguation), AQ ** (i) AdventureQuest ** (s) American Samoa (FIPS 10-4 territory code) ** Antarctica (ISO 3166 digram) ** (i) Power Five conferences, Automatic qualifier, a term used by U.S. sports media from 1998 to 2013 to refer to the six conferences whose champions automatically entered the now-defunct Bowl Championship Series of college football * AQIM – (i) Al-Qaeda in the Islamic Maghreb * AQPS – (i) ''Autre que pur-sang'' (French: "Other than Thoroughbred"), designation of a type of French racehorse

AR

* AR (disambiguation), ar – (s) Arabic language (ISO 639-1 code) * AR (disambiguation), Ar – (s) Argon * AR (disambiguation), AR ** (s) Argentina (FIPS 10-4 country code; ISO 3166 digram) ** Arkansas (postal symbol) ** (i) List of ArmaLite rifles, ArmaLite Rifle (cf. ArmaLite AR-15 and AR-15 style rifle, both also referred to with the "AR" initialism) ** Armour ** (s) Arunachal Pradesh (Indian state code) * ARA (disambiguation), ara – (s) Arabic language (ISO 639-2 code) * ARAG (disambiguation), ARAG – (a) Advanced Research and Assessment Group * ARB (disambiguation), ARB – (i) Administrative Review Board * ARBA (disambiguation), ARBA – (a/i) Army Review Boards Agency * ARC (disambiguation), ARC ** (i) Appalachian Regional Commission ** Arc-second Raster Chart ** (a) Association of Retarded Citizens, the original name of the organization now known as Arc of the United States ** (i) Athletics–Recreation Center, an indoor arena at Valparaiso University * ARCA (disambiguation), ARCA – (a) Automobile Racing Club of America * ARCENT – (p) United States Army Central Command * Arda (disambiguation), ARDA – (a) Advanced Research and Development Activity (became DTO (disambiguation), DTO 2006) * ARE (disambiguation), ARE ** (i) UK Admiralty Research Establishment (1984–1991) ** (s)

(ISO 3166 trigram) * ARF (disambiguation), ARF – (i) ASEAN Regional Forum * ARG (disambiguation), arg – (s)

(ISO 639-2 code) * ARG (disambiguation), ARG – (s) Argentina (ISO 3166 trigram) * ARH (disambiguation), ARH – (s) Armed Reconnaissance Helicopter * ARI (disambiguation), ARI ** (i) Acute Respiratory Infection ** U.S. Army Research Institute for the Behavioral and Social Sciences * ARL (disambiguation), ARL ** (i) UK Admiralty Research Laboratory (1921–1977) ** U.S. Army Research Laboratory ** UIUC Aviation Research Laboratory * ARM ** (a) ARM architecture, Acorn RISC Machine, later Advanced RISC Machine (cf. Arm Ltd.) ** Anti-Radiation Missile ** Adjustable-rate mortgage ** (s)

(ISO 3166 trigram) * ARNet – (p) Acquisition Reform Network *AROTS – Australian Rare Or Threatened Species * ARP (disambiguation), ARP – (i) Address Resolution Protocol – Applied Research Programme * ARPA (disambiguation), ARPA – (a) Advanced Research Projects Agency * ARRC (disambiguation), ARRC – (i) Allied Command Europe, ACE Rapid Reaction Corps * ARRF – (i) Allied Rapid Reaction Force * ARRL – (i) American Radio Relay League * Ars (disambiguation), ARS ** (i) Agricultural Research Service ** (s) Argentine peso (

currency code) * ARSC (disambiguation), ARSC – (i) Arctic Region Supercomputing Center * ARSPACE – (p) U.S. Army Space Command * ART (disambiguation), ART ** (a) Adaptive Resonance Theory ** Anti-Retroviral Therapy * ARTCC – (i) Air Route Traffic Control Center * ARWG – (i) Army Research Working Group ("are-wig")

AS

* AS (disambiguation), as ** (i) Adult swim ** (s) Assamese language (ISO 639-1 code) ** Attosecond * AS (disambiguation), aS – (s) Attosiemens * AS (disambiguation), As – (s) Arsenic * AS (disambiguation), AS ** (s) American Samoa (postal symbol; ISO 3166 digram) ** Australia (FIPS 10-4 country code) ** Assam / Asom (Indian state code) * AS (disambiguation), AS – (i) ActionScript * AS (disambiguation), A/S – (i) Anti-submarine * A&S (disambiguation), A&S – (i) Armament & Standardisation * ASA (disambiguation), ASA ** (i) Salicylic acid, AcetylSalicylic Acid ** American National Standards Institute, American Standards Association ** Army Security Agency ** Atlantic Southeast Airlines * ASAP (disambiguation), ASAP – (a) As Soon As Possible * ASARS ** (a) Advanced Synthetic Aperture Radar System ** Airborne Search and Rescue System * ASB (disambiguation), ASB – (i) Associated Student Body – Alternative Service Book (Church of England) * asbl – (i) ''association sans but lucratif'' (French language, French "Non-profit organisation") * ASBO – (a) Antisocial Behavior Order * ASCAP – (a) American Society of Composers, Authors, and Publishers * ASCC (disambiguation), ASCC ** (i) Army Service Component Commander ** Harvard Mark I, Automatic Sequence Controlled Calculator ** NATO reporting name, Air Standardization Coordinating Committee * ASCIET – (i) All Services Combat Identification Evaluation Team * ASCII – (a) American Standard Code for Information Interchange * ASC+T – (i) Anti Slip Control + Traction * ASD (disambiguation), ASD ** (i) (U.S.) Assistant Secretary of Defense ** Autism spectrum disorder * ASD(C3I) – (i) (U.S.) (Command, Control, Communications, & Intelligence) * ASD(FMP) – (i) (U.S.) Assistant Secretary of Defense (Force Management Policy) * ASD(HA) – (i) (U.S.) Assistant Secretary of Defense (Health Affairs) * ASD(ISA) – (i) (U.S.) Assistant Secretary of Defense (International Security Affairs) * ASD(ISP) – (i) (U.S.) Assistant Secretary of Defense (International Security Policy) * ASD(LA) – (i) (U.S.) Assistant Secretary of Defense (Legislative Affairs) * ASD(PA) – (i) (U.S.) Assistant Secretary of Defense (Public Affairs) * ASD(RA) – (i) (U.S.) Assistant Secretary of Defense (Reserve Affairs) * ASD(SO&HA) – (i) (U.S.) Assistant Secretary of Defense (Special Operations & Humanitarian Assistance) * ASD(SO/LIC) – (i) (U.S.) (Special Operations & Low-Intensity Conflict) * ASD(S&R) – (i) (U.S.) Assistant Secretary of Defense (Strategy & Requirements) * ASD(S&TR) – (i) (U.S.) Assistant Secretary of Defense (Strategy & Threat Reduction) * ASDIC – (a) Allied Submarine Detection Investigation Committee (Sonar) * ASEAN – (a) Association of Southeast Asian Nations * ASFAR – (a) Americans for a Society Free of Age Restrictions * ASG (disambiguation), ASG – (i) Area Support Group * ASIC – (a) Australian Securities and Investments Commission – (a) Aviation Security Identification Card * ASICS – (a) ''Anima sana in corpore sano'' (Latin, "A sound mind in a sound body") (athletic shoe manufacturer) * ASIO (disambiguation), ASIO ** (a) Australian Security Intelligence Organisation ** Audio Stream Input/Output * ASIP ** (i) Advanced System Improvement Program ** Army Stationing and Installation Plan ** Application-specific instruction set processor * ASL ** (i) Above Sea Level ** American Sign Language (also known as ''Ameslan'') ** "Age, Sex, Location?" (Internet slang) * ASM (disambiguation), asm – (s) Assamese language (ISO 639-2 code) * ASM (disambiguation), ASM ** (i) Air-to-surface missile, Air-to-Surface Missile ** (s) American Samoa (ISO 3166 trigram) ** (i) American Society for Metals ** American Society for Microbiology ** ''Association Sportive Montferrandaise'' (French language, French, "Clermont-Ferrand Sporting Association"), as in ASM Clermont Auvergne * ASMB ** (i) American Society for Matrix Biology ** Adult Swim Message Board * ASME ** (i) American Society of Mechanical Engineers ** American Society of Magazine Editors * ASMP (disambiguation), ASMP ** (i) ''Air-Sol Moyenne Portée'' missile (French "Medium-range air to surface") ** (p) Asymmetric multiprocessing * ASMR – Autonomous Sensory Meridian Response * ASN (disambiguation), ASN – (i) Associate of Science in Nursing * ASOC (disambiguation), ASOC ** (a/i) Air Sovereignty Operations Centre ** Air Support Operations Centre ** Airport Security and Operations Centre ** Antarctic and Southern Ocean coalition (ASOC), Antarctic and Southern Ocean Coalition ** Atlanta Symphony Orchestra, Atlanta Symphony Orchestra Chorus ** Australian Standard Offence Classification * ASP (disambiguation), ASP ** (i) Active Server Pages ** American Society of Primatologists ** Ammunition Supply Point ** Application Service Provider (cf internet service provider) ** Astronomical Society of the Pacific ** Association of Surfing Professionals * ASPI (disambiguation), ASPI – (i) Australian Strategic Policy Institute * ASR (disambiguation), ASR ** (i) Alkali-silica reaction ** Anti Slip Regulation * ASRAAM – (a) Advanced Short-Range Air-to-Air Missile * ASSC (disambiguation), ASSC – (i) Association for the Scientific Study of Consciousness * Ass Paym – Assistant Paymaster * AST (disambiguation), AST – (i) Atlantic Standard Time (UTC−4 hours) * ASTIA – (a) Armed Services Technical Information Agency * ASTM – (i) American Society for Testing and Materials * ASTREA (disambiguation), ASTREA – (a) ASTREA (air support unit), Aerial Support To Regional Enforcement Agencies (sheriff's air support unit) * ASUN – (p) Atlantic Sun Conference, now branded as the ASUN Conference (pronounced "A-sun") * ASUW (disambiguation), ASUW – (p) AntiSUrface Warfare * ASVAB–Armed Services Vocational Aptitude Battery (taken by juniors in high school in the USA) * ASVEL – (a) ASVEL Basket, Association Sportive Villeurbanne Éveil Lyonnais (''Association Sportive'' is French for "Sporting Association"; the club was founded through the merger of AS Villeurbanne and Éveil Lyonnais) * ASW (disambiguation), ASW – (i) AntiSubmarine Warfare * ASWORG – (i) (U.S.) AntiSubmarine Warfare Operations Research Group * ASX (disambiguation), ASX ** (p) Advanced Stream Redirector ** Australian Securities Exchange

AT

* AT (disambiguation), aT – (s) Attotesla * AT (disambiguation), At – (s) Astatine * AT (disambiguation), AT – (i) Anti-Tank – (s) Ashmore and Cartier Islands (FIPS 10-4 territory code) – Austria (ISO 3166 digram) – (i) Advanced Technology (IBM Personal Computer/AT) * ATA (disambiguation), ATA – (i) Advanced Technology Attachment (IBM Personal Computer) – Afghan Transitional Authority – Allen Telescope Array – (s) Antarctica (ISO 3166 trigram) * ATAC (disambiguation), ATAC – (a) Air Transportable Acoustic Communications * ATACMS – (p) Army TACtical Missile System * ATAPI – (a) Advanced Technology Attachment Packet Interface * ATAS (disambiguation), ATAS – (a) Air-To-Air FIM-92 Stinger, Stinger (missile) * ATAT (disambiguation), ATAT – (a) Aiken Tactical Airsoft Team / Star Wars vehicle * ATB ** (i) Active Time Battle ** (s) British Antarctic Territory (ISO 3166 trigram; merged with AQ (disambiguation), AQ in 1979) * ATC (disambiguation), ATC – ** (i) Air Traffic Control ** Air Training Corps ** U.S. Air Transport Command (United States Air Force), Air Transport Command (1942–1948) ** Athletic Trainer, Certified
www.nata.org
* ATCCIS – (i) Army Tactical Command and Control Information System * ATESS – (i) Aerospace and Telecommunications Engineering Support Squadron * ATF (disambiguation), ATF ** (s) French Southern Territories (ISO 3166 trigram) ** (i) (U.S.) Bureau of Alcohol, Tobacco, Firearms and Explosives (from its previous name, which did not include "Explosives") * ATG (disambiguation), ATG – (s)

(ISO 3166 and FIFA trigram) * ATGM – (i) Anti-Tank Guided Missile * ATGW – (i) Anti-Tank Guided Weapon * ATI (disambiguation), ATI – ** (i) Allied Telesyn International, Inc. ** (a) Array Technologies Incorporated. (ATI Technologies) ** Air Transport International - American cargo airline * Atisbo – a Local Government Area in Nigeria named for constituent communities (Ago-Are, Tede, Irawo, Sabe, Baasi, Ofiki and Owo) * ATK (disambiguation), ATK – (p) Attack * ATL (disambiguation), ATL – (p) Atlanta, Georgia, the largest city and capital of Georgia; taken from the IATA code for Hartsfield–Jackson Atlanta International Airport, its airport * ATLAS experiment, ATLAS – ** (a) All-Terrain Lifter Army System ** (p) Assessment Tool for LAnd Systems * ATM (disambiguation), ATM – ** (i) automated teller machine, Automated Teller Machine ** Asynchronous Transfer Mode ** At The Moment * ATN – (s) Dronning Maud Land (ISO 3166 trigram; merged with AQ (disambiguation), AQ in 1983) * ATO (disambiguation), ATO ** (i) Air Tasking Order ** Australian Taxation Office * ATP (disambiguation), ATP ** (i) Adenosine triphosphate, Adenosine TriPhosphate ** Allied Tactical Publication ** Ammunition Transfer Point ** Association of Tennis Professionals (cf. ATP Tour, ATP Challenger Tour, ATP Champions Tour) * ATSD – (p) (U.S.) United States Assistant Secretary of Defense, Assistant Secretary of Defense * ATSDR – (i) Agency for Toxic Substances and Disease Registry * American Telephone and Telegraph, AT&T – (i) American Telephone and Telegraph (U.S. company, also known as "Ma Bell") * ATV (disambiguation), ATV ** (i) All-terrain vehicle ** Associated Television – former UK TV company * ATWA – (a) Air, Trees, Water, Animals

AU

* AU (disambiguation), Au – (s) Gold (Latin ''Aurum'') * AU (disambiguation), AU – ** (i) African Union (was OAU before 2000) ** American University ** (s) Astronomical Unit ** Australia (ISO 3166 diagram) ** Austria (FIPS 10-4 country code) * AUC (disambiguation), AUC – ** (i) ''Ab Urbe Condita'' / ''Anno Urbis Conditae'' (Latin "from the founding of the city" / "in the year since the founding of the city") (of Rome) ** Area Under the Curve (concentration time curve; medicine) * AUD – (s) Australian dollar (

currency code) * AUS (disambiguation), AUS – (s) Australia (ISO 3166 trigram) * AUSCANNZUKUS – (p) Australia, Canada, New Zealand, United Kingdom, United States (security designation) * Auslan – (p) Australian Sign Language * AUT (disambiguation), AUT – (s) Austria (ISO 3166 trigram) * AUTL – (i) Army Universal Task List

AV

* AV (disambiguation), av – (s) Avar language (ISO 639-1 code) * AV (disambiguation), aV – (s) Attovolt * AV (disambiguation), Av – (i) Aperture priority, Aperture value (photographic mode) * AV (disambiguation), AV ** (s)

(FIPS 10-4 territory code) ** (i) Audio-Visual ** (s) Aviation * AVA (disambiguation), ava – (s) Avar language (ISO 639-2 code) * AVA (disambiguation), AVA – (i) American Viticultural Area * AVB (disambiguation), AVB – (i) Audio Video Bridging * AVCATT-A – (p) (U.S. Army's) Aviation Combed Arms Tactical Trainer-Aviation [Reconfigurable Manned Simulator] * AVDLR – (p) Aviation Depot Level Repair * ave – (s)

(ISO 639-2 code) * AVGP – (i) Armoured Vehicle, General Purpose * AVI (disambiguation), AVI – (i) Audio Video Interleave * AVIM – (p) Aviation Intermediate Maintenance * AVLB – (i) Armoured Vehicle Launched Body * AVM ** (i) Air Vice-Marshal ** (p) Arteriovenous malformation * AVO (disambiguation), AVO – (i) Apprehended Violence Order * AVP (disambiguation), AVP – (a) Arubaanse Volkspartij * AVP (disambiguation), AVP – (i) Association of Volleyball Professionals * Armoured Vehicle Royal Engineers, AVRE – (i) Armoured Vehicle Royal Engineers * AVTB ** (i) Armoured Vehicle Test Bed ** (p) Aviation Test Bed * AVUM – (p) Aviation Unit Maintenance * AVUS – (a) ''Automobil-Verkehrs- und Übungsstraße'' (German, "Automobile Traffic and Training Road"; former auto racing track and current road in Berlin) * AVVO – (a) Acute Vaginal Venereal Outbreak

AW

* AW (disambiguation), aW – (s) Attowatt * AW (disambiguation), AW – (s)

(ISO 3166 digram) * AWA (disambiguation), AWA – (i) American Wrestling Association * Airborne early warning and control, AWACS – (a) Airborne Warning And Control System * AWC (disambiguation), AWC – (i) Air Warfare Centre * AWD (disambiguation), AWD – many, including all-wheel drive, All Wheel Drive; ''see entry'' * Awe (disambiguation), AWE – (i/a) Advanced Warfighting Experiment * AWG (disambiguation), AWG – (s) Aruban

(

currency code) * AWOL – (a) Absent Without Official Leave / Absent WithOut Leave (military jargon) * AWP (disambiguation), AWP – (p) Awaiting Parts (SM&R code) * AWSIM – (p) Air Warfare SIMulation * AWST (disambiguation), AWST – (a) Australian Western Standard Time * AWW (disambiguation), AWW – (i) Above-Water Warfare

AX

* AX (disambiguation), AX – (s)

(ISO 3166 digram) * AXP (disambiguation), AXP – (p) Ambulance eXchange Point

AY

* AY (disambiguation), ay – (s) Aymara language (ISO 639-1 code) * AY (disambiguation), AY – (s) Antarctica (FIPS 10-4 territory code) * AYBABTU – (i) All Your Base Are Belong To Us * AYM (disambiguation), aym – (s) Aymara language (ISO 639-2 code) * AYU – (i) As Yet Unknown

AZ

* AZ (disambiguation), az – (s) Azerbaijani language (ISO 639-1 code) * AZ (disambiguation), AZ ** (s) Arizona (postal symbol) **

(ISO 3166 digram) ** (i) AZ Alkmaar, Alkmaar Zaanstreek (Dutch football club) * Azerbaijan Airlines, AZAL - Azerbaijan Airlines * AZE (disambiguation), aze – (s) Azerbaijani language (ISO 639-2 code) * AZE (disambiguation), AZE – (s)

(ISO 3166 trigram) * AZN (disambiguation), AZN – (s) Azerbaijani manat (

currency code) * AZUR (disambiguation), AZUR – (p) ''Actions en zone urbaine'' (French, Urban Operations) {{List of acronyms Lists of acronyms, Acronyms A