Editing AA

{{wiktionary|AA|Aa|aa|a-a|A.A.}}
'''AA''', '''Aa''', '''Double A''', or '''Double-A''' may refer to:

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== Arts, entertainment and media ==
* ''[[America's Army]]'', a 2002 computer game published by the U.S. Army
* ''[[Ancient Anguish]]'', a computer game in existence since 1992
* [[Aa!]], a J-Pop musical group
* [[Double-A (band)]], stylized as AA, South Korean boy band
* [[Aa (album)|''Aa'' (album)]], a 2016 album by Baauer
* [[AA (song)]], a 2021 single by Walker Hayes
* ''[[Ace Attorney]]'', a series of video games developed by Capcom.
*[[AA Films]], an Indian film distribution company
*[[AA Book (disambiguation)]]
*AA, the production code for the 1966 ''Doctor Who'' serial ''[[The Savages (Doctor Who)|The Savages]]''
*[[Academy Award]], in the film industry

== Brands, organizations and enterprises ==
* [[Alcoholics Anonymous]], support organization
* [[A. A. Arms]], a defunct firearms manufacturer
* [[Aerolíneas Argentinas]], an Argentine airline
* [[Air Asia]], an airline
* [[Air Austral]] airline, former logo
* [[Alcoa]], a US aluminum producer, stock symbol
* [[American Airlines]], IATA code
* [[Anadolu Agency]], press agency, Turkey
* [[Arakan Army]], Rakhine State, Myanmar, a rebel group 
* [[Audio-Animatronics]], used at Disney Parks
* [[Academia de Artes]], Mexico
* Former US [[Amalgamated Association of Iron and Steel Workers]]
* [[Architectural Association School of Architecture]], London, United Kingdom
* [[Astrological Association of Great Britain]], London, UK
* [[Auswärtiges Amt]], the Foreign Office of Germany
* [[Danish Association of Architects]] (''Akademisk Arkitektforening'')
* [[The AA]], UK motoring organization
* [[AA Ireland]], an Irish automotive services company
* AA Motoring Trust, merged into [[IAM Motoring Trust]]

== Education ==

* [[Albuquerque Academy]], independent school in Albuquerque, New Mexico
* [[Associate of Arts]], an academic degree

== Philosophy and religion ==
* [[A∴A∴]], a spiritual organization created in 1907 by Aleister Crowley
* [[Abhisamayalankara]], or Abhisamaya-alaṅkāra, a Mahayana Buddhist text
* [[Augustinians of the Assumption]], a congregation of Catholic religious (priests and brothers)
* [[Statue of A'a from Rurutu]], a wooden fertility-god sculpture from the Pacific island of Rurutu
* "[[A is A]]", an expression of the law of identity: each thing is identical with itself
* [[Iah]], an ancient moon deity
* AA or A.A. ([[After Adam]]), year notation in the Mandean calendar

== Language ==
* aa, [[List of Latin-script digraphs#A|Latin-script digraph]] used in the orthographies of Dutch, Finnish, and other languages
* aa, representation of letter [[Å]] in several Scandinavian languages
* aa, a [[romanization of Arabic]] letter alif {{angbr|ا}}
* {{not a typo|[[Ꜳ]]}}, an [[orthographic ligature]]
* [[Afar language]] (ISO 639-1 language code aa)
* [[Aa (Bengali)]], a Bengali letter

==Measurements==
* AA, a [[bra size]]
* AA, a width in [[shoe size]]s
* [[AA battery]] size

== Nature ==
* [[Aa (plant)|''Aa'' (plant)]], a genus of orchid
* [[Aa (snail)|''Aa'' (snail)]], a subgenus of snail 
* [[{{okina}}A{{okina}}ā]] or aa, a form of lava
* A term for "river" in German hydronymy, see [[Aach (toponymy)]]

== People ==
* [[Aa (surname)]], a Scandinavian surname, including a list of people with this name
* [[Van der Aa (surname)]], a Dutch surname, including a list of people with this name
* [[Aa (architect)]], an architect in Ancient Egypt
* [[Anthony Armstrong (writer)]] (1897–1972), Anglo-Canadian writer who used the pseudonym A.A. when writing for ''Punch''
* [[Allu Arjun]] (born 1982), Indian actor, often abbreviated as AA in film titles

==Places==
* [[Aa, Estonia]], a village and beach in Estonia
* [[Aa, Indonesia]], a populated place in the South Sulawesi province of Indonesia
* [[Albania]], LOC MARC code
* [[Ann Arbor, Michigan|Ann Arbor]], a city in Michigan, United States of America
* [[Anne Arundel County, Maryland|Anne Arundel County]], a county in Maryland, United States of America
* [[Antarctica]], WMO country code
* [[Aruba]], FIPS country code

== Rivers ==
=== Belgium ===
*[[Aa (Nete)]], in the province of Antwerp, tributary of the [[Nete (river)|Nete]]

=== France ===
*[[Aa (France)]]

=== Germany ===
*[[Aabach (Afte)]], formerly Große Aa, North Rhine-Westphalia
*[[Aa (Möhne)]], North Rhine-Westphalia
*[[Aa (Nethe)]], North Rhine-Westphalia
*[[Aa (Werre)]], North Rhine-Westphalia
*[[Bocholter Aa]], North Rhine-Westphalia
*[[Dreierwalder Aa]], North Rhine-Westphalia
*[[Kleine Aa (Aabach)]], a tributary of the Aabach in North Rhine-Westphalia
*[[Große Aa]], a tributary of the Ems in Lower Saxony
*[[Große Aa (Aabach)]], a tributary of the Aabach in North Rhine-Westphalia
*[[Münstersche Aa]], North Rhine-Westphalia
*[[Schaler Aa]], Lower Saxony and North Rhine-Westphalia
*[[Speller Aa]], Lower Saxony and North Rhine-Westphalia
*[[Steinfurter Aa]], North Rhine-Westphalia

=== Netherlands ===
*[[Aa (Meuse)]], North Brabant
*[[Aa of Weerijs]], North Brabant
*[[Drentsche Aa]], Drenthe and Groningen
* {{ill|Ruiten Aa|nl}}, a river in [[Westerwolde (region)|Westerwolde]], Groningen

=== Switzerland ===
*[[Aabach (Aare)]], a tributary of the Aare, in Aargau canton
*[[Aabach (Greifensee)]] or Ustermer Aa, in canton of Zürich
*[[Aabach (Obersee)]], a tributary of Obersee (Zürichsee), in canton of St. Gallen
*[[Aabach (Seetal)]], in the cantons of Lucerne and Aargau
*[[Chli Aa (Sempachersee)]], a tributary of Lake Sempach in the canton of Lucerne
*[[Engelberger Aa]], in the cantons of Obwalden and Nidwalden
*[[Gross Aa (Sempachersee)]], a tributary of Lake Sempach in the canton of Lucerne
*[[Mönchaltorfer Aa]], a tributary of Greifensee in canton of Zürich
*[[Sarner Aa (river)]], Obwalden, tributary of Lake Lucerne

=== Latvia ===
*[[Gauja]], Latvia, formerly known as ''Livländische Aa''
*[[Lielupe]], Latvia, formerly known as ''Kurländische Aa''

== Science and technology ==
* [[AA amyloidosis]]
* [[Abstract algebra]], a branch of mathematics
* Anesthesiologist assistant, see [[certified anesthesiologist assistant]]
* [[Aplastic anemia]], a disease
* [[Arachidonic acid]], a polyunsaturated fatty acid
* Advanced Architecture, later [[Amiga Advanced Graphics Architecture]]
* [[Atlas Autocode]], a computer programming language
* AA, [[Audible.com]] file format
* [[Authoritative Answer]] bit, in DNS, a flag for a query answer
* [[AA postulate]] of Euclidean geometry
* [[Anti-aircraft]], in military use
* Attoampere (aA), 10<sup>−18</sup> [[Ampere]], a unit of electric current
* [[AA tree]] in computer science
* Abbreviation for [[1-diazidocarbamoyl-5-azidotetrazole|azidoazide azide]]
* Internet slang for [[ASCII Art]]
* Japanese internet slang for [[Shift JIS art]]

== Sports ==
* [[Double-A (baseball)]] or Class AA, a Minor League Baseball classification level 
* [[American Association (1882–1891)]], US baseball league
* [[American Association (1902–1997)]], US baseball league
* [[American Association of Professional Baseball]], North American baseball league
* [[Athletics Australia]]
* [[Amateur Athletic Union]], US, since 1884

== Transportation ==
* [[AA Highway]], Kentucky, US
* Former [[Ann Arbor Railroad (1895–1976)]], Ohio and Michigan
* [[Ann Arbor Railroad (1988)]], Ohio and Michigan
* Former [[K (Eighth Avenue Local)|''K'' line]], New York City Subway, formerly "AA"
* [[NZR AA class|NZR A<sup>A</sup> class]], a New Zealand locomotive class
* [[Ascend Airways]]

== Other uses ==
* [[Anna's Archive]], search engine for shadow libraries
* [[Asian Aerospace]], an air show in Asia
* [[European Union Association Agreement]]
* [[List of U.S. state abbreviations|Postal abbreviation]] for the United States armed forces in the Americas

== See also ==
* [[AAA (disambiguation)]]
* [[Grosse Aa (disambiguation)]]
* [[Kleine Aa (disambiguation)]]
* ''[[A Aa]]'', a film
* [[Automobile Association (disambiguation)]]

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