AA
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Template:Wiktionary Aa or AA may stand for:
Aa
- Aa, a genus of orchid.
- an alternative transcription of Å, a letter in the Swedish, Norwegian, Danish, and other alphabets.
- a river in northern France: Aa River, France.
- one of several Aa Rivers (or rather a stream / creek) in Scandinavia, Germany, Switzerland and the Netherlands . Aa can be a transcription of Å: see below and Å (disambiguation).
- a type of basaltic rock, pronounced "ah-ah", usually dark-colored with a jagged surface, formed in large sheets from slow-moving lava. It is one of two chief forms of rock emitted from volcanoes of the Hawaiian type, the other being pahoehoe.
- a village on northern coast of Estonia.
AA
- AA ("double A"), one of the standard sizes for dry cell batteries
- AA ("double-A") is a league level in minor league baseball
- Ace-Ace (in Poker)
- Alcoa stock symbol
- Alcoholics Anonymous
- American Airlines
- American Atheists
- America's Army, a computer game (FPS) made by the US Army
- Ann Arbor Railroad Template:Reporting mark
- Anti-Aircraft
- Anti-Aliasing, A computer graphics term meaning "the technique of minimizing aliasing when representing a high-resolution signal at a lower resolution."
- Argenteum Astrum
- ASCII Art or Shift-JIS art
- Associate of Arts or Associate in Arts
- Authentication and Authorization
- Automobile Association, a British motoring organisation
- The postal abbreviation for United States armed forces in the Americas (excluding Canada).
- Aerolineas Argentinas: Argentinian Airline.
aa
- Afar language (ISO 639 alpha-2, aa)
et:AA el:AA fr:Aa it:Aa nl:Aa (waternaam) ja:AA pl:AA pt:AA sv:AA