| Acronym | Meaning |
| DTRA | Defense Threat Reduction Agency (deet-ra) |
| ISIS | Institute For Science And International Security |
| TSA | Theatre Storage Area - Time Slot Allocation - Transportation Security Administration |
| THEGENTRY | The High-End Group Of Earth's New Technologies Research Yield |
| ZW | Zettawatt - Zimbabwe (ISO 3166 Digram) |
| OTEA | (U.S. Army) Operational Test Evaluation Agency |
| TU | Technische Universit?t (German For Technical University) - Thammasat University (Thailand) -Turkey (FIPS 10-4 Country Code) |
| HORECA | Hotel |
| NARA | (U.S.) National Archives And Records Administration |
| APC | Armoured Personnel Carrier - Armour Piercing Capped (ammunition) |