| Acronym | Meaning |
| TA | Tantalum |
| PKR | Pakistani Rupee (ISO 4217 Currency Code) |
| HTA | HyperText Application |
| AAS | Advanced Automation System - American Astronomical Society (double-A-S) |
| FSTC | Foreign Science Technology Center (now NGIC) |
| TACCO | Tactical Coordinator |
| RN | Radon -Registered Nurse (USA) |
| NAV | Navigation[al] |
| ETM | Enhanced Thematic Mapper |
| PAA | Position Area For Artillery |