| Acronym | Meaning |
| RAP | Radio Access Point - Radiological Assistance Program (U.S. Department Of Energy) - Rear Area Protection - Recognised [Operating/Operational] Air Picture - Recurring Advance Payment - Relational Associative Processor - Reliable Acoustic Path - Rocket-Assis |
| TL | Team Leader -Teralitre - Timor-Leste (ISO 3166 Digram) -ThermoLuminescence |
| CAN | Canada (ISO 3166 Trigram) |
| DF OR DF | lectricit? De France (French |
| MPF | Maritime Prepositioning Force |
| FOB | Free On Board (shipping) |
| YH | Yottahenry |
| AOSTH | Adventures Of Sonic The Hedgehog |
| FSC | Federal Supply Classification -Forest Stewardship Council (ecological Pressure Group) |
| CRAM | Combined Radiometric Correction Model |