| Acronym | Meaning |
 | SPST | Single-Pole Single-Throw |
| 2.5G | Second-and-a-half-generation Mobile Telephone System |
| JANUS | Joint Academic Network Using Satellites (UK) - Joint Army Navy Uniform Simulation -Joint Army-Navy Staff - Just ANother Useless Simulation (Note: The U.S. Army Janus Simulation Is Not An Acronym) |
| SRM | Specified Risk Material |
| IFPI | International Federation Of Phonographic Industries |
| CTSS | Compatible Time-Sharing System |
| PCZ | Panama Canal Zone (ISO 3166 Trigram; Obsolete 1980) |
| SDI | See Entry |
| SSCCATAGAPP | Singles |
| FOS | Florida Ornithological Society - Full Operational Status |
Browse by Letter:
