| Acronym | Meaning |
| UUV | Unmanned Underwater Vehicle |
| BEL | Belgium (ISO 3166 Trigram) |
| SMA | Scan Mirror Assembly |
| RM | Raeto-Romansh Language (ISO 639-1 Code) |
| SRP | Serbian Language (ISO 639-2 Code) |
| HRD | Human Resource Development |
| QUANGO | (British Commonwealth) QUasi Autonomous Non-Governmental Organisation |
| FYI | For Your Information |
| HESH | High-Explosive |
| PDRY | People's Democratic Republic Of Yemen (obsolete Since 1990) |