GAA
GAA refers to a General Aviation Area, a designated airspace for private and non‑commercial flying, and is also used for titles such as General Accredited Appraiser or educational institutions like Green Acorn Academy.
Medical
Miscellaneous
Gahan Aholics Anonymous
Grab A Award
Georgia Alternate Assessment
Argument Analyzer
German Agro Action
Guanidine Acetic Acid
Community
Global Aids Alliance
Graphic Arts Association
Gravure Association of America
Gravure Association of the Americas
Governmental
General Aviation Activity
General Aviation Area
General Agency Agreement
Geospatial Intelligence Assessment Activity
General Appropriations Act [Massachusetts]
Global Aquaculture Alliance
General Appropriation Act