| Meaning | Category |
| Accident Sickness And Unemployment | Business->Positions |
| Administrative Support Unit or Air Support Unit | Governmental->Police |
| Agrupación Socialista Universitaria | International->Spanish |
| Aikido Schools of Ueshiba | Miscellaneous->Hobbies |
| Air Support Unit | Governmental->Police |
| Air Support Unit or Admin Support Unit | Governmental->Police |
| All Stars United | Community->Sports |
| All State Undergraduate | Academic & Science->Universities |
| Angelo State University | Academic & Science->Universities |
| Appalachian State Unversity | Academic & Science->Universities |
| Apple Software Updates | Computing->General |
| Approval for Service Use | Governmental->Military |
| Arizona State University | Academic & Science->Universities |
| Asian Student Union | Academic & Science->Universities |
| Asuncion, Paraguay | Regional->Airport Codes |
| Automatic Sampling Unit | Business->Products |
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