| Acronym | Meaning |
| FFR | Fédération Française De Rugby (French Rugby Federation) |
| IDL | Interface Definition Language |
| GSS | Generic Security Services |
| BARDA | Biomedical Advanced Research & Development Agency |
| FRA | French Language (ISO 639-2 Code) |
| TAH | Tahitian Language (ISO 639-2 Code) |
| DK | Denmark (ISO 3166 Digram) |
| BAE | BAE Systems (formerly British Aerospace |
| ERA | Earned Run Average - Engineering Research Associates - Equal Rights Amendment - English Racing Automobiles - European Railway Agency |
| FEF | Frontal Eye Field (neurophysiology) |