| Acronym | Meaning |
| NV | Nanovolt |
| GWARS | Ground Warfare System (simulation) |
| DRET | Defence Research Establishment Toronto (obsolete 2002) |
| CLI | Command Line Interface/Interpreter |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| HAZ | Heat-Affected Zone |
| OBSS | Off Board Sensor Systems - Ordo Byantinus Sancti Sepulchri (Byzantine Order Of The Holy Sepulchre) - Orbiter Boom Sensor System (space Shuttle) - Origins Billion Star Survey |
| FJ | Fijian Language (ISO 639-1 Code) |
| KCL | King's College London |
| CSK | Czechoslovakia (ISO 3166 Trigram; Obsolete Since 1993) |