| Acronym | Meaning |
| IDO | Ido Language (ISO 639-2 Code) |
| PSI | Portable Source Initiative |
| NOK | Norwegian Krone (ISO 4217 Currency Code) |
| TEMO | Training |
| F/U/B/O | For The Use And Benefit Of (found In Legal Documents) |
| JUGFET | JUnction Gate Field-Effect Transistor |
| KHR | Cambodian Riel (ISO 4217 Currency Code) |
| MORP | Meteorite Observation And Recovery Project |
| C2 OR C? | Command And Control |
| ECCM | Electronic Counter-Counter-Measures |