| Acronym | Meaning |
| YS | Yottasecond |
| NMCI | Navy Marine Corps Intranet |
| BLR | Belarus (ISO 3166 Trigram) |
| DRA | Defence Research Agency (UK |
| FOOP | Friends Of Organ Pipes (Volunteer Group) |
| WOT | Waste Of Time |
| PADI | Professional Association Of Diving Instructors |
| NPH | Normal Pressure Hydrocephalus |
| CMO | Civil-Military Operations |
| TVG | Tick |