| Acronym | Meaning |
| WFC | Women's Forage Corps (WWII UK) |
| PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| TNO | Trans-Neptunian Object |
| ERTS | Earth Resources Technology Satellite (became Landsat) |
| GLE | Irish Language (ISO 639-2 Code) |
| AZE | Azerbaijani Language (ISO 639-2 Code) |
| TL | Thallium |
| SCRAM | Safety Control Rod Axe Man |
| CVLL | Crypto Variable Logic Label |
| RCAR | Research Council For Automobile Repairs (are-car) |