| Acronym | Meaning |
| SVC | Secondary Visual Cortex |
| IE | Indo-European Languages - Internet Explorer -Ireland (ISO 3166 Digram) |
| PK | Picokelvin |
| TSO | The Stationery Office (was HMSO Until 1996) - (U.S.) TRICARE Support Office |
| OPTAR | Operational Target |
| LCCP | Light Contingency Communications Package |
| GE | General Electric - Genetic Engineering (cf. GM) -Georgia (ISO 3166 Digram) |
| SSRN | Nuclear-Powered Radar Picket Submarine (retired US Navy Hull Classification) |
| W | Tungsten (from German Wolfram) - Watt - West |
| MT | Meitnerium |