| Acronym | Meaning |
 | SIS | UK Secret Intelligence Service (also Known As MI6) |
| OOO | Out Of The Office |
| HE | Helium |
| UNAIDS | Joint United Nations Programme On HIV/AIDS |
| IWC | International Whaling Commission |
| PG | Papua New Guinea (ISO 3166 Digram) -Parental Guidance (rating) |
| NBT | Nitroblue Tetrazolium (assay) |
| LANL | Los Alamos National Laboratory |
| ASD(RA) | (U.S.) Assistant Secretary Of Defense (Reserve Affairs) |
| DIFAR | DIrectional Frequency Analysis And Recording |
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