An, AN, aN, or an may refer to:

Businesses and organizations

Airlinair Société Airlinair, simply known as Airlinair, was a French regional airline based in Rungis, France, operating scheduled regional flights (some of which were on behalf of Air France), and aircraft lease services. The airline has set up bases a ...

(IATA airline code AN) *

Alleanza Nazionale National Alliance ( it, Alleanza Nazionale, AN) was a conservative political party in Italy.Luciano Bardi - Piero Ignazi - Oreste Massari, ''I partiti italiani'', Egea 2007, pp. 151, 173n. It was the successor of the Italian Social Movement (MSI ...

, a former political party in Italy * AnimeNEXT, an annual anime convention located in New Jersey *

Anime North Anime North (AN) is a non-profit, fan-run anime convention, held every year in Etobicoke, a district in Toronto, Ontario, Canada. Its major attractions, activities and events include a Masquerade, a Dealers Room, an Artists Alley, Guest of Ho ...

, a Canadian anime convention *

Ansett Australia Ansett Australia was a major Australian airline group, based in Melbourne, Australia. The airline flew domestically within Australia and from the 1990s to destinations in Asia. After operating for 65 years, the airline was placed into admini ...

, a major Australian airline group that is now defunct (IATA designator AN) *

Apalachicola Northern Railroad The Apalachicola Northern Railroad was a short-line railroad which operated in the Florida Panhandle. It owned and operated a between Port Saint Joe, Florida, and Chattahoochee, Florida, with a short spur to Apalachicola, Florida. It was founded ...

(reporting mark AN) 1903–2002 **

AN Railway The AN Railway is one of several shortline railroad companies owned by the Genesee & Wyoming parent company. It operates between Port Saint Joe, Florida and a connection with the Florida Gulf & Atlantic Railroad at Chattahoochee, Florida. The r ...

, a successor company, 2002– *

Aryan Nations Aryan Nations is a North American antisemitic, neo-Nazi, white supremacist organization that was originally based in Kootenai County, Idaho, about miles (4.4 km) north of the city of Hayden Lake. Richard Girnt Butler founded the group i ...

, a white supremacist religious organization *

Australian National Railways Commission The Australian National Railways Commission was an agency of the Government of Australia that was a railway operator between 1975 and 1998. It traded as Australian National Railways (ANR) in its early years, before being rebranded as Australian ...

, an Australian rail operator from 1975 until 1987 *

Antonov Antonov State Enterprise ( uk, Державне підприємство «Антонов»), formerly the Aeronautical Scientific-Technical Complex named after Antonov (Antonov ASTC) ( uk, Авіаційний науково-технічни� ...

, a Ukrainian (formerly Soviet) aircraft manufacturing and services company, as a model prefix

Entertainment and media

* Antv, an Indonesian television network * ''

Astronomische Nachrichten ''Astronomische Nachrichten'' (''Astronomical Notes''), one of the first international journals in the field of astronomy, was established in 1821 by the German astronomer Heinrich Christian Schumacher. It claims to be the oldest astronomical jou ...

'', or ''Astronomical Notes'', an international astronomy journal * '' Avisa Nordland'', a Norwegian newspaper * '' Sweet Bean'' (あん), a 2015 Japanese film also known as ''An''

Language

* An, English indefinite article *

Anglo-Norman language Anglo-Norman, also known as Anglo-Norman French ( nrf, Anglo-Normaund) (Standard French, French: ), was a dialect of Old Norman French that was used in Kingdom of England, England and, to a lesser extent, elsewhere in Great Britain and Ireland du ...

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, Sob ...

(ISO 639-1:2002 language code AN) * Algemeen Nederlands (meaning "Common Dutch"), the official Dutch language * A variant of the

prefix A prefix is an affix which is placed before the stem of a word. Adding it to the beginning of one word changes it into another word. For example, when the prefix ''un-'' is added to the word ''happy'', it creates the word ''unhappy''. Particu ...

"in", used before vowels to convey the meaning "not" (for example:

aneuploid Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human cell having 45 or 47 chromosomes instead of the usual 46. It does not include a difference of one or more complete sets of chromosomes. A cell with an ...

means "not euploid")

Mathematics, science, and technology

* ''A_n'', in mathematics, a

root system In mathematics, a root system is a configuration of vectors in a Euclidean space satisfying certain geometrical properties. The concept is fundamental in the theory of Lie groups and Lie algebras, especially the classification and representat ...

and its Dynkin diagram * ''A_n'', in mathematics, conventional notation for the

alternating group In mathematics, an alternating group is the group of even permutations of a finite set. The alternating group on a set of elements is called the alternating group of degree , or the alternating group on letters and denoted by or Basic pr ...

* ''a_n'', a generic label for a term of a

sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is called ...

AN thread The AN thread (also A-N) is a particular type of fitting used to connect flexible hoses and rigid metal tubing that carry fluid. It is a US military-derived specification that dates back to World War II and stems from a joint standard agreed upon ...

, Army and Navy thread - for bolts and tube fittings in 16th inch increments *

Acanthosis nigricans Acanthosis nigricans is a medical sign characterised by brown-to-black, poorly defined, velvety hyperpigmentation of the skin. It is usually found in body folds, such as the posterior and lateral folds of the neck, the armpits, groin, navel, f ...

, a skin condition *

Acrylonitrile Acrylonitrile is an organic compound with the formula and the structure . It is a colorless, volatile liquid although commercial samples can be yellow due to impurities. It has a pungent odor of garlic or onions. In terms of its molecular ...

, an organic compound and monomer used in the manufacture of certain plastics *

Actinide The actinide () or actinoid () series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. The actinide series derives its name from the first element in the series, actinium. The inf ...

(An), informal symbol for a series of chemical elements *

Ammonium nitrate Ammonium nitrate is a chemical compound with the chemical formula . It is a white crystalline salt consisting of ions of ammonium and nitrate. It is highly soluble in water and hygroscopic as a solid, although it does not form hydrates. It ...

(AN), a chemical compound *

Anode An anode is an electrode of a polarized electrical device through which conventional current enters the device. This contrasts with a cathode, an electrode of the device through which conventional current leaves the device. A common mnemoni ...

, in electronic schematics *

Anorexia nervosa Anorexia nervosa, often referred to simply as anorexia, is an eating disorder characterized by underweight, low weight, Calorie restriction, food restriction, body image disturbance, fear of gaining weight, and an overpowering desire to be thi ...

, an eating disorder *

Application note A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficie ...

(in engineering), most often seen as A.N. * Attonewton (aN), an SI unit of force *

Anorthite Anorthite is the calcium endmember of the plagioclase feldspar mineral series. The chemical formula of pure anorthite is Ca Al2 Si2O8. Anorthite is found in mafic igneous rocks. Anorthite is rare on the Earth but abundant on the Moon. Minera ...

, a feldspar mineral

Military

* A prefix used by the U.S. military for electronic equipment named under the

Joint Electronics Type Designation System The Joint Electronics Type Designation System (JETDS), which was previously known as the Joint Army-Navy Nomenclature System (AN System. JAN) and the Joint Communications-Electronics Nomenclature System, is a method developed by the U.S. War Depa ...

Net laying ship A net laying ship, also known as a net layer, net tender, gate ship or boom defence vessel was a type of naval auxiliary ship. A net layer's primary function was to lay and maintain steel anti-torpedo or anti-submarine nets. Nets could be laid ...

(US Navy hull classification symbol AN) * ''Avtomat Nikonova'' used for the

AN-94 The AN-94 (Russian: 5,45-мм автомат Никонова обр. 1987 г. / АН-94 «Абака́н», GRAU designation 6P33) is a Russian assault rifle. The initials stand for ''Avtomat Nikonova'' model of 1994, after its chief designer ...

Names

Ahn (Korean name) Ahn, also romanized An, is a Korean family name. 109 Korean clans are named 'Ahn', but with different origins. In 2000, there were 637,786 people bearing this surname in South Korea, making it the 20th most common family name in the country, with r ...

(安) *

An (surname) The surname An is a Chinese Surname () which literally means "peace" or "tranquility". It also serves as an abbreviation of ''Anxi'' (安息), meaning "Arsacid" in Chinese and can be romanized as ''On''. Visitors to China who came from Arsacid-he ...

(安), Chinese surname

Places

* An County, in Sichuan, China * Agios Nikolaos (disambiguation), a common place name in Greece and Cyprus *

Province of Ancona The province of Ancona ( it, provincia di Ancona) is a province in the Marche region of central Italy. Its capital is the city of Ancona, and the province borders the Adriatic Sea. The city of Ancona is also the capital of Marche. To the north, t ...

, a province of Italy (ISO 3166-2:IT code AN) *

Andaman and Nicobar Islands The Andaman and Nicobar Islands is a union territory of India consisting of 572 islands, of which 37 are inhabited, at the junction of the Bay of Bengal and the Andaman Sea. The territory is about north of Aceh in Indonesia and separated ...

, a territory in southeastern India (ISO 3166 code AN) *

Anderson County, Kansas Anderson County (county code AN) is a county located in East Central Kansas, in the Central United States. As of the 2020 census, the county population was 7,836. Its county seat and most populous city is Garnett. History Early history F ...

(state county code AN) *

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 str ...

(obsolete NATO country code AN) *

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

(World Meteorological Organization country code AN) * Netherlands Antilles (ISO country code AN)

Religion

An (Shintō) The is a small table, desk or platform used during Shinto Shinto () is a religion from Japan. Classified as an East Asian religion by scholars of religion, its practitioners often regard it as Japan's indigenous religion and as a nature ...

, a small table or platform used during Shinto ceremonies *

Anu , image=Detail, upper part, Kudurru of Ritti-Marduk, from Sippar, Iraq, 1125-1104 BCE. British Museum.jpg , caption=Symbols of various deities, including Anu (bottom right corner) on a kudurru of Ritti-Marduk, from Sippar, Iraq, 1125–1104 BCE , ...

or An, a god in Sumerian and Babylonian mythology

Other uses

* Associate degree in

nursing Nursing is a profession within the health care sector focused on the care of individuals, families, and communities so they may attain, maintain, or recover optimal health and quality of life. Nurses may be differentiated from other health ...

Algebraic notation (chess) Algebraic notation (or AN) is the standard method for recording and describing the moves in a game of chess. It is based on a system of coordinates to uniquely identify each square on the chessboard. It is used by most books, magazines, and newsp ...

(AN), the standard system for recording moves in chess