| Acronym | Meaning |
| CNO | Computer Network Operations |
| YT | Mayotte (ISO 3166 Digram) - Yottatesla - Yukon Territory (postal Symbol) |
| GEO | Geostationary Earth Orbit -Georgia (ISO 3166 Trigram) |
| AA | Afar Language (ISO 639-1 Code) |
| NCL | New Caledonia (ISO 3166 Trigram) |
| HIPPARCOS | HIgh Precision Parallax COllecting Satellite |
| VIC | Victoria |
| GHB | Gamma-HydroxyButyrate |
| CEPT | Conf?rence Europ?enne Des Administrations Des Postes Et Des T?l?communications (French |
| ABRSM | Associated Board Of The Royal Schools Of Music |