AF, af, Af, etc. may refer to:

Arts and entertainment

A-F Records A-F Records is an American independent record label founded by punk rock band Anti-Flag and based in Pittsburgh, Pennsylvania, Pittsburgh, Pennsylvania. It was created to help expose more political punk bands to a larger audience. The label's of ...

, an independent record label in Pittsburgh, Pennsylvania, US, founded by the band Anti-Flag *''

Almost Family ''Almost Family'' is an American drama television series based on the Australian television series ''Sisters'', developed by Annie Weisman which aired from October 2, 2019, to February 22, 2020, on Fox. In March 2020, Fox canceled the series af ...

'' episode titles tend to be "'' djective' AF"

Businesses and organizations

European

ÅF AFRY AB (publ) is a Swedish-Finnish supplier of engineering, design, and advisory services, with a global reach. The company originates from Sweden and it was formed in 1895 under the name of “The Southern Swedish Steam Generator Association� ...

, a Swedish technical consulting company *

AF Gruppen The AF Group ASA () ( no, AF Gruppen) is the third largest civil engineering and construction company in Norway. The company headquarters is located in Oslo. The AF Group is listed on the Oslo Stock Exchange. History The AF Group was establis ...

, a multinational construction and development company based in Norway * Académie française, the official institution responsible for overseeing the French language *

Action Française Action may refer to: * Action (narrative), a literary mode * Action fiction, a type of genre fiction * Action game, a genre of video game Film * Action film, a genre of film * ''Action'' (1921 film), a film by John Ford * ''Action'' (1980 fil ...

, a French far right political movement *

Air France Air France (; formally ''Société Air France, S.A.''), stylised as AIRFRANCE, is the flag carrier of France headquartered in Tremblay-en-France. It is a subsidiary of the Air France–KLM Group and a founding member of the SkyTeam global a ...

(IATA airline code and Euronext stock symbol "AF") * Anarchist Federation (British Isles), an Anarchist-Communist agitational organisation in Britain

International

* Abercrombie & Fitch, an American-based, international clothing retailer * The Adaptation Fund, a UN organization responsible for climate change adaptation * Adventist Forums, an organization of progressive Seventh-day Adventists *

Alliance Française An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...

, an international organization that aims to promote French language and culture

Elsewhere

American Freightways American Freightways Corp. (AF) was an American regional less than truckload (LTL) carrier based in Harrison, Arkansas Harrison is a city and the county seat of Boone County, Arkansas, United States. It is named after General Marcus LaRue ...

, former American trucking company in 2006 merged into FedEx Freight

Language

* Académie française, the official institution responsible for overseeing the French language *

, an international organization that aims to promote French language and culture * Acronym Finder, an online database of abbreviations (acronyms, initialisms, etc.) *

Afrikaans language 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 ...

(ISO 639-1 language code AF) *"...as fuck", meaning "very", in

SMS language Short Message Service (SMS) language, textism, or textese is the abbreviated language and slang commonly used in the late 1990s and early 2000s with mobile phone text messaging, and occasionally through Internet-based communication such as ema ...

and internet messageboards

Military

* AF Guardian, a warplane of the US Navy *

Air force An air force – in the broadest sense – is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an ...

* Armed forces

Places

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 ...

, by 2-letter ISO, FIPS 10-4 and obsolete NATO country code **

.af .af is the Internet country code top-level domain (ccTLD) for Afghanistan. It is administered by AFGNIC, a service of the UNDP. As of 26 August 2020, .af was used by 5960 domains. Registration is made directly at the second level, or on the th ...

, the country code top-level domain for Afghanistan * Agra Fort railway station, near Rawatpara, Agra, India *

American Fork, Utah American Fork is a city in north-central Utah County, Utah, United States, at the foot of Mount Timpanogos in the Wasatch Range, north from Utah Lake. This city is thirty-two miles southeast of Salt Lake City. It is part of the Provo– ...

, US

Science and technology

Acoustics and communications

* Amplify-and-Forward, a scheme of

relay channel In information theory, a relay channel is a probability model of the communication between a sender A sender was a special type of circuit in 20th-century electromechanical telephone exchanges which registered the telephone numbers dialed by the s ...

Alternative frequency Alternative frequency (or AF) is an option that allows a receiver to re-tune to a different frequency that provides the same station, when the first signal becomes too weak (e.g. when moving out of range). This is often used in car stereo systems, ...

Audio frequency An audio frequency or audible frequency (AF) is a periodic vibration whose frequency is audible to the average human. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. The generally accepted ...

Units of measure

Acre-feet The acre-foot is a non- SI unit of volume equal to about commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water, and river flows. An acre-f ...

, the quantity of water that covers one acre to a depth of one foot *

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 ...

, an SI unit of electric capacitance

Visual arts

Autofocus An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system ...

, the ability of a camera to focus automatically *

Anisotropic filtering In 3D computer graphics, anisotropic filtering (abbreviated AF) is a method of enhancing the image quality of textures on surfaces of computer graphics that are at oblique viewing angles with respect to the camera where the projection of the ...

Other uses in science and technology

* Af, the Köppen climate classification for a

tropical rainforest climate A tropical rainforest climate, humid tropical climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southea ...

* Across flats (A/F), a measure of hexagonal nut flat size *

Advanced Format Advanced Format (AF) is any disk sector format used to store data on magnetic disks in hard disk drives (HDDs) that exceeds 512, 520, or 528 bytes per sector, such as the 4096, 4112, 4160, and 4224-byte (4 KB) sectors of an Advanced Format ...

, a new disk format and access using sector sizes larger than 512 bytes *

Anaerobic filter Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to: * Anaerobic adhesive, a bonding a ...

, a type of anaerobic digester *

Arcuate fasciculus The arcuate fasciculus (AF) is a bundle of axons that generally connects the Broca's area and the Wernicke's area in the brain. It is an association fiber tract connecting caudal temporal cortex and inferior frontal lobe. ''Fasciculus arcuatus'' i ...

, a nerve bundle in the brain * Atrial fibrillation, a form of cardiac arrhythmia

Other uses

* Alabama and Florida Railway (reporting mark AF) *

Anno Fascista The ''Era Fascista'' ("Fascist Era") was a calendar era (year numbering) used in Fascist Italy. The March on Rome, or more precisely the accession of Mussolini as prime minister on 29 October 1922, is day 1 of ''Anno I'' of the ''Era Fascista ...

, a year in the Italian Fascist calendar {{disambiguation