Initialism of Agricultural Adjustment Act. • Initialism of Agricultural Adjustment Administration. • Initialism of American Anthropological Association. • Initialism of Abortion Assistance Association. • Initialism of All American Aviation. • Initialism of Allegheny Airlines. • Initialism of Allied Artists Association. • Initialism of Allied Artists of America. • Initialism of American Abstract Artists. • Initialism of American Academy of Allergy; now the AAAAI. • Initialism of American Academy of Actuaries. • Initialism of American Academy of Advertising. • Initialism of American Accordionists' Association. • Initialism of American Accounting Association. • Initialism of American Airship Association. • Initialism of American Ambulance Association. • Initialism of American Antarctic Association. • Initialism of American Arbitration Association. • Initialism of American Association for Anatomy. • Initialism of American Astronomers Association. • Initialism of American Australian Association. • Initialism of American Automobile Association. • Initialism of Access All Areas, Sony music project. • Initialism of Actors and Artistes of America; now the AAAA or 4As. • Initialism of Agricultural Aviation Association. • Initialism of Agricultural Adjustment Association. • Initialism of Amateur Athletic Association of England. • Initialism of Antique Airplane Association. • Initialism of Appraisers Association of America. • Initialism of Archives of American Art. • Initialism of Association of Accounting Administrators. • Initialism of Association of Average Adjusters. • Initialism of Armenian Assembly of America. • Initialism of Argentine Anticommunist Alliance. • Initialism of ANSI Artists of America. • Initialism of Area-Agency on Aging. • Initialism of Army Athletic Association. • Initialism of Army Audit Agency; more commonly the USAAA. • Initialism of Associated Agents of America. • Initialism of Australian Association of Accountants. • Initialism of Australian Automobile Association.