| Acronym | Meaning |
| CNY | Chinese Yuan Renminbi (ISO 4217 Currency Code) |
| HOSTAC | Helicopter Operations From Ships Other Than Aircraft Carriers |
| TAC | U.S. Tactical Air Command (1946-1992) |
| NACA | (U.S.) National Advisory Committee For Aeronautics (1915?1958 |
| TA | Tantalum |
| SDI | See Entry |
| SA | Sanskrit Language (ISO 639-1 Code) |
| QM | Quality Management - Quantum Mechanics - Queen Mother |
| ATAS | Air-To-Air Stinger (missile) |
| WWI | World War I |