- (initialism) . American Association of Advertising Agencies.
- (initialism) . American Association for Affirmative Action.
- (initialism) . Antique Aeroplane Association of Australia.
- (initialism) . Australian Automotive Aftermarket Association.
- (initialism) . Army Aviation Association of America.
- (initialism) . "Authentication, Authorization, Accounting, and Auditing", the four main services provided by an Internet Authentication Service.
- Noun. a specific size and configuration of electric battery.
- Noun. (slang) a baseball player who is too good for Minor League Baseball, but not good enough for Major League Baseball.
- Noun. a type of DNS record used to indicate the IPv6 internet address of a DNS name.