| Acronym | Meaning |
| IST | Information System Technology - UCF Institute For Simulation And Training |
| FEBA | Forward Edge Of The Battle Area |
| OOCL | Orient Overseas Container Line |
| RORO OR RO | Ro -Roll-On/Roll-Off (ferry) |
| YN | Yoctonewton |
| QCA | Qualifications And Curriculum Authority - Quality Council Of Alberta |
| ECT | ElectroConvulsive Therapy |
| CC | Many |
| HM | Heard Island And McDonald Islands (ISO 3166 Digram; FIPS 10-4 Territory Code) |
| BRB | Barbados (ISO 3166 Trigram) -Be Right Back (Internet Chat Abbreviation) |