GAI could mean a variety of things for different areas and professions
Acronym Definition GAI General Applet Interface GAI Giustizia e Affari Interni (Italian) GAI Guild of Architectural Ironmongers GAI Great American Insurance GAI Global-Tech Appliances Inc GAI Global Atmospherics Inc GAI General Ability Index GAI Germanic-American Institute GAI Geophysical Association of Ireland GAI Glutaric Aciduria Type I (disorder) GAI General Aircraft Information GAI Grease, Aircraft, and Instruments GAI Gimbal Angle Indicator GAI General Accounting Instructions GAI Global Authentication Incorporated GAI Montgomery Co. Gaithersburg, MD (airport code) GAI GPETE Auxiliary Item GAI Global Assistance, Inc. GAI Gosudarstvennaja Avtomobilnaja Inspekstija (Soviet/Russian Traffic Police) GAI Graphic Arts Institute (various locations) GAI German Archaeological Institute