| Acronym | Meaning |
| ASD | (U.S.) Assistant Secretary Of Defense - Autism Spectrum Disorder |
| DIR | Defence Industrial Research |
| OPEC | Organization Of Petroleum Exporting Countries |
| VCT | Saint Vincent And The Grenadines (ISO 3166 Trigram) |
| BU | Bulgaria (FIPS 10-4 Country Code) - Burma (ISO 3166 Digram; Obsolete Since 1989) |
| POSH | Port Outbound Starboard Home (alleged) |
| HESV | Heavy Engineering Support Vehicle |
| RT | Radio Telefs ireann |
| QNH | Regional Mean Sea Level Atmospheric Pressure (aeronautical Q Code) |
| LCC | Land Component Commander |