| Acronym | Meaning |
| SSRN | Nuclear-Powered Radar Picket Submarine (retired US Navy Hull Classification) |
| SMIL | Synchronized Multimedia Integration Language |
| NODEF | NATO Oceanographic Data Exchange Format |
| SAW | Squad Automatic Weapon - Surface Acoustic Wave |
| BUL | Bulgarian Language (ISO 639-2 Code) |
| UNRISD | United Nations Research Institute For Social Development |
| ATB | Active Time Battle -British Antarctic Territory (ISO 3166 Trigram; Merged With AQ In 1979) |
| ISF | Internal Security Force |
| RAF | Red Army Faction - Royal Air Force |
| IVD | Internet Video Device |