sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| A T Still University | **** |
| Air Traffic Service Units | *** |
| Air Traffic Services Units | ** |
| Aboriginal Tertiary Support Unit | ** |
| And Technical Staff Union | * |
| Accelerator Test Standard Upgrade | * |
| Agricultural and Technical State University | * |
| Air Traffic Service Unit (UK) | * |