| Acronym | Meaning |
 | DSO | Distinguished Service Order (British Military Decoration) |
| ADDNS | Advanced Deployable Day/Night Simulation |
| BQ | British Antarctic Territory (ISO 3166 Digram; Merged With AQ In 1979) - Navassa Island (FIPS 10-4 Territory Code) |
| NRA | National Rifle Association |
| DMPA | (U.S.) Defense Medical Programs Activity |
| LOL | Laughing Out Loud (Internet Short-hand) |
| TANSTAAFL | There Ain't No Such Thing As A Free Lunch (coined By Author Robert A. Heinlein In His The Moon Is A Harsh Mistress) |
| LO | Slovakia (FIPS 10-4 Country Code) |
| CAM | Chemical Agent Monitor - Computer-Aided Manufacturing |
| FBR | Fast Breeder Reactor - Foundation For Biomedical Research |
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