| Acronym | Meaning |
| CO | Corsican Language (ISO 639-1 Code) |
| GT | Gigatesla -Gran Turismo - Grand Touring -Guatemala (FIPS 10-4 Country Code; ISO 3166 Digram) |
| ARDA | Advanced Research And Development Activity (became DTO 2006) |
| USAP | Union Sportive Arlequins Perpignan |
| EV | Exavolt |
| TAROT | T?lescope ? Action Rapide Pour Les Objets Transitoires (French |
| ESO | European Southern Observatory |
| DMA | U.S. Defense Mapping Agency (became NIMA |
| EPW | Earth Penetrator Weapon/Warhead - Economic And Political Weekly (Indian Publication) - Enemy Prisoner Of War |
| WZ | Swaziland (FIPS 10-4 Country Code) |