| Acronym | Meaning |
| CMOC | Civil-Military Operations Centre |
| SDH | Synchronous Digital Hierarchy |
| NER | Niger (ISO 3166 Trigram) |
| GN | GuaranĀ Language (ISO 639-1 Code) |
| TRAIN | Tourist Railway Association |
| ZA | Zhuang Language (ISO 639-1 Code) |
| UXO | Unexploded Ordnance |
| VMF | Variable Message Format |
| JCATS | Joint Conflict And Tactical Simulation (djay-catts) |
| FBCS | Fellow Of The British Computer Society |