| Acronym | Meaning |
| DRES | Defence Research Establishment Suffield (obsolete 2002) |
| RPN | Reverse Polish Notation |
| SOB | Son Of A Bitch - Same Old Bullshit |
| JIB | Joint Information Bureau |
| CXR | Christmas Island (ISO 3166 Trigram) |
| IMPATT | IMPact Avalanche Transit Time Diode |
| HIN | Hindi Language (ISO 639-2 Code) |
| ASEAN | Association Of South East Asian Nations |
| FSO | Fire Support Officer - Flotilla Staff Officer - Foreign Service Officer |
| BEN | Bengali Language (ISO 639-2 Code) |