Atomic Absorption 
Alcoholics Anonymous 
Affirmative Action 
Auto Answer 
Antiaircraft 
Alternatives Analysis 
Aluminum Association 
Ann Arbor Railroad 
Assembly Area 
Assistant Administrator 
Automobile Association 
access authorization 
Accountable Area 
activation analysis 
Active Army 
Adverse Action 
Advices of Allowance 
african american 
Air-to-Air 
Always Afloat 
American Airlines 
Arithmetic Average 
Associate Administrator 
Associate in Arts 
Associate of Arts 
Attack Assessment 
Avenue of Approach 
absolute alcohol 
Academic Affairs 
Accelerated Assemblies