| Acronym | Meaning |
| GBBC | Great Backyard Bird Count |
| LRF | Laser RangeFinder -Low Readiness Forces |
| ISF | Internal Security Force |
| CAF | Central African Republic (ISO 3166 Trigram) -Confederation Of African Football (or French Conf?d?ration Africaine De Football) |
| KAT | Georgian Language (ISO 639-2 Code) |
| FN | Femtonewton |
| SYSML | System Modeling Language |
| TIM | Technical Information Memorandum - Technical Interchange Meeting - Toxic Industrial Material - Telecom Italia Mobile |
| WCBO | World Chess Boxing Organisation |
| VEN | Venda Language (ISO 639-2 Code) |