| Acronym | Meaning |
| SONAR | SOund Navigation And Ranging |
| VSOP | Variations S?culaires Des Orbites Plan?taires (French |
| MMS | Multimission Modular Spacecraft |
| WOLOG (OR WLOG) | WithOut Loss Of Generality |
| PL | Picolitre |
| NACISA | NATO Communications And Information Systems Agency |
| UDT | Underwater Demolition Team |
| PUN | Pull-Up Network |
| CY | Welsh Language (ISO 639-1 Code) |
| TATP | TriAcetone TriPeroxide |