| Acronym | Meaning |
| IRR | Iranian Rial (ISO 4217 Currency Code) |
| CRC | Central RTI Component - Chemical Rubber Company - Christian Reformed Church - Control And Reporting Centre -Costa Rican Col›n (ISO 4217 Currency Code) -Cyclic Redundancy Check |
| NAVMACS | Naval Modular Automatic Communication Subsystem |
| KW | Cornish Language (ISO 639-1 Code) |
| FSC | Federal Supply Classification -Forest Stewardship Council (ecological Pressure Group) |
| PCTE | Portable Common Tool Environment;Punjab College Of Technical Education |
| TOS | Tape Operating System - Terms Of Service - Tramiel Operating System |
| UV | Burkina Faso (FIPS 10-4 Country Code; From Upper Volta) -ultraviolet |
| CCIR | Comit? Consultatif International Pour La Radio (French For Consultative Committee On International Radio |
| TEAL | Tasman Empire Airways Limited |