| Acronym | Meaning |
| INFOSEC | Information Security |
| FS | Fire Support (military) -French Southern And Antarctic Territories (FIPS 10-4 Territory Code) |
| ACTF | Australian Children's Television Foundation - (U.S.) Army Constructive Training Federation |
| XUL | XML User Interface Language |
| RDO | Rapid |
| SSP | Submarine Transport (retired US Navy Hull Classification) |
| ATV | All-Terrain Vehicle |
| ANS | Applied And Natural Sciences |
| FIA | F?d?ration Internationale De L'automobile (French International Automobile Federation) |
| PN | Petanewton - Pitcairn Islands (ISO 3166 Digram) |