| Acronym | Meaning |
| AT | Anti-Tank -Ashmore And Cartier Islands (FIPS 10-4 Territory Code) - Austria (ISO 3166 Digram) -Advanced Technology (IBM Personal Computer/AT) |
| BOPD | Barrel Of Oil Per Day |
| WNA | World Nuclear Association |
| GLG | Galician Language (ISO 639-2 Code) |
| TSO | Tsonga Language (ISO 639-2 Code) |
| EBW | Electron Beam Welding |
| AVGP | Armoured Vehicle |
| T | Tera - Tesla - Tritium |
| SSDC | U.S. Space And Strategic Defense Command |
| AJ | Attojoule |