| Acronym | Meaning |
| FM | Femtometre |
| QS | Quantum Sufficit (Latin |
| PDU | Police Dog Unit - Power Distribution Unit - Protocol Data Unit |
| MAC | Macao (ISO 3166 Trigram) -U.S. Military Airlift Command (1966-1992) |
| RCS | Radar Cross-Section - Revision Control System - Reaction Control System |
| BLUI | Body Language User Interface (blooie) |
| IRSN | Institut De Radioprotection Et De S?ret? Nucl?aire (French |
| HPA | UK Health Protection Agency |
| YL | Yoctolitre |
| JTF | Joint Task Force |