Association of American Universities 
Association of African Universities 
Aalborg University 
Academic Audit Unit 
Addis Ababa University 
Administrative Appeals Unit 
Air Ambulance Unit 
Analog Applique Unit 
Association of Atlantic Universities 
Aarhus Universitet 
accelerated aging unit 
acute anterior uveitis 
Acute Assessment Unit 
Addis Abada University 
Address Arithmetic Unit 
Administrative Assistance Unit 
Advanced Audio Package 
Aircraft Acceptance Unit 
Aircraft Assembly Unit 
Alabama A&M University 
Alternate Access Unit 
Amateur Athletic Union 
amendment to allege use 
American Association of Universities 
Announcement Amplifier Unit 
Antillean Adventist University 
Application Accelerator Unit 
Asian Americans United 
Assam Agriculture University 
Assigned Amount Unit