| Acronym | Meaning |
| UNFCCC | United Nations Framework Convention On Climate Change |
| SOM | Simulation Object Model -Somalia (ISO 3166 Trigram) |
| RT | Real Time - Radio Telephone -Return To Duty |
| UCI | Union Cycliste Internationale (French |
| MORS | Military Operations Research Society |
| NAFO | Northwest Atlantic Fisheries Organization |
| KPW | North Korean Won (ISO 4217 Currency Code) |
| OSA | Order Of St. Augustine |
| OPP | Ontario Provincial Police - Operational Planning Process - Other People's Privates |
| DMA | U.S. Defense Mapping Agency (became NIMA |