AA

Organizations and businesses

• Architectural Association School of Architecture, the prestigious London based School of Architecture

• The Albany Academy, an independent day school for boys in Albany, New York

• Albuquerque Academy, an independent day school in Albuquerque, New Mexico

• Alcoa, an American aluminium-producing company with the stock ticker symbol AA

• Alcoholics Anonymous, a worldwide fellowship of persons recovering from alcoholism

• Alvesta Alternative, a political party in Sweden

• Amalgamated Association of Iron and Steel Workers, a former union in the United States

• American Atheists, an organization advocating for atheists in the United States

• American Apparel, a clothing company in the United States

• Amir Adnan, a Pakistani fashion label for men

• Annuaires Afrique, an African online directory

• Apollo Alliance, an organization advocating energy independence and renewable energy for the United States

• Foreign Office (Germany) (Auswärtiges Amt), the Foreign Office of Germany

Transportation

• Adelaide Airport, large Australian airport

• American Airlines, IATA airline code

• Aerolíneas Argentinas, an Argentine airline

• AirAsia, a Malaysian airline

• Air America (airline), a CIA front that supplied covert operations during the Vietnam War

• NZR AA class, a locomotive class operated by the New Zealand Railways Department

• Ann Arbor Railroad, a railroad connecting Ann Arbor, Michigan and Toledo, Ohio in the United States

• The Automobile Association, a British motoring organisation

• The Automobile Association (Ireland), an Irish motoring organisation

• *within a country to refer to the Automobile Association of that country, such as the New Zealand Automobile Association

• AA Motoring Trust, a British road safety charity that merged with IAM Motoring Trust

• AA Publishing, a trading name of The Automobile Association in the UK

Sports, games and pastimes

• Ace Attorney, a series of courtroom based video games called Gyakuten Saiban in Japan.

• America's Army, a computer game published by the U.S. Army

• American Association (19th century), baseball

• American Association (20th century), baseball

• American Association of Independent Professional Baseball started in 2006

• Ancient Anguish, an LPMud (computer game) in existence since 1992

• Class AA, a level in the Farm System of minor league baseball

Science, medicine, mathematics and computing

• Aā (lava flow), a type of basaltic lava flow

• AA, or Advanced Architecture, original name of Amiga Advanced Graphics Architecture

• AA amyloidosis, a form of amyloidosis related to Serum amyloid A

• AA postulate of Euclidian geometry

• Academia de Artes, Mexico

• Aggregatibacter actinomycetemcomitans, a species of bacteria found to be in association with certain types of periodontal disease

• Amplitude of accommodation, a measurement of the eye's ability to focus clearly on objects at near distances

• Anti-aliasing, a computer graphics technique

• Aortic aneurysm

• Arachidonic acid, a polyunsaturated fatty acid

• ASCII art, an artistic medium in which pictures are composed of symbols taken from the ASCII computer character set

• Atlas Autocode, a computer programming language

• Atomic absorption spectroscopy, an instrument for measuring the content of metal in samples

People

• Aaron Ashmore

• Adam Ant

• Adam Arkin

• Adewale Akinnuoye-Agbaje

• Afshan Azad

• Alan Alda

• Alan Arkin

• Alessandra Ambrosio

• Alexis Amore

• Alison Armitage

• Amy Acker

• Amy Acuff

• Amy Adams

• Amy Allen

• Andre Agassi

• Anne Archer

• Anthony Anderson

• Armand Assante

• Arn Anderson, professional wrestler

• Art Alexakis

• Ashley Argota

• Ashley Parker Angel

• Asia Argento

• Ayaan Hirsi Ali

Other

• Associate of Arts degree

• AA battery size

• AA Brassiere measurement

• AA certificate - a film rating used by the British Board of Film Classification Censors between 1970 and 1982, restricting audiences to those aged 14 and over

• Abhisamayalankara, or Abhisamaya-alaṅkāra, a Mahayana Buddhist text.

• Affirmative action, a social policy dealing with underrepresented minorities

• African American

• Agreement on Agriculture, a WTO treaty

• Air attaché, usually a high-ranking air force officer on the staff of an embassy

• Antarctica, World Meteorological Organization country code

• Anti-aircraft warfare, a military term for combat against airborne enemies from the ground

• Amon Amarth

• Aruba (DAFIF 0413 / DIA 65-18 / FIPS PUB 10-4 territory code)

• Asian Aerospace, the biggest airshow event in Asia

• Asian American

• Assumptionists, the Augustinians of the Assumption, a congregation of Catholic religious (priests and brothers)

• Audio Adrenaline

• The production code for The Savages (Doctor Who), a Doctor Who serial

• Anti-aliasing filter a filter used in digital signal processing

• Ayt Ayache

• pocket aces

A∴A∴

• A∴A∴, (Latin: Argenteum Astrum), a magical order created by Aleister Crowley

Aa

• Å, letter found in several languages including Swedish, Norwegian and Danish, which can be alternatively transcribed as "aa"

• *Brynjar Aa, Norwegian dramatist

• *Aa, Å or Aa River, the name of several waterways in Europe

• Aa! Megami-sama or Oh My Goddess!, a popular anime/manga series

• Aa!, a J-Pop musical group

• Aa (lava flow), a type of lava (see below)

• Aa (plant), a genus of orchid

• Aa, Estonia, a village on northern coast of Estonia

• AUTOart, a high quality die cast model car manufacturer

• Van der Aa, a Dutch name

• *Petrus van der Aa (1530—1594), a Flemish jurist

• *Philips van der Aa, a Dutch statesman during the Eighty Years' War

• *Pieter van der Aa (1659—1733), a Dutch publisher

• *Terje Aa, bridge player

'A'ā

• Aā (lava flow), one of three basic types of lava flow

aA

• abampere, the CGS unit of current

• attoampere, 10⁻¹⁸ ampere, a unit of electric current

aa

• Aa (digraph)

• Afar language, ISO 639 alpha-2 language code

• Amino acid, a subunit of which proteins are constituted

• Authoritative Answer, in DNS a flag for query answer

.aa

• a proprietary digital audio format of Audible.com

See also

• Å (disambiguation)