| Acronym | Meaning |
| CU | Cuba (FIPS 10-4 Country Code; ISO 3166 Digram) |
| YOR | Yoruba Language (ISO 639-2 Code) |
| DRI | Detection |
| NAVSPASUR | U.S. Naval Space Surveillance System |
| PWR | Pressurized Water Reactor |
| IPK | Inupiaq Language (ISO 639-2 Code) |
| CINC | Commander In Chief |
| KPV | Krupnokaliberniy Pulemet Vladimorova (Russian ???? ???????????????? ??????? ??????????? |
| RHO | Southern Rhodesia (ISO 3166 Trigram; Obsolete 1980) |
| OIE | World Organisation For Animal Health (originally The Office International Des ?pizooties |