AA
noun
Elementary
1
A member of Alcoholics Anonymous.
2
An AA battery (energy-storage device).
3
Initialism of affirmative action.
4
Initialism of air armament.
5
Initialism of air attaché.
6
Initialism of aircraft apprentice.
7
Initialism of aircraft artificer.
8
Initialism of absolute altitude.
9
Initialism of anti-aircraft.
10
Initialism of avenue of approach.