| Acronym | Meaning |
| RHO | Southern Rhodesia (ISO 3166 Trigram; Obsolete 1980) |
| NNSA | U.S. National Nuclear Security Administration |
| LMS | London Mathematical Society - London |
| BSA | Birmingham Small Arms (motorcycles Company) - Boy Scouts Of America - Brigade Support Area |
| YIPPIE | Youth International Party + Suffix |
| LNG | Liquefied Natural Gas |
| SK | Slovak Language (ISO 639-1 Code) |
| IETF | Internet Engineering Task Force |
| CAFE | Corporate Average Fuel Economy Standard |
| KS | Kansas (postal Symbol) - Republic Of Korea (FIPS 10-4 Country Code) |