| Acronym | Meaning |
| GPS | General Problem Solver - Global Positioning System |
| NHS | National Health Service (UK) |
| RADB | Rad51/Dmc1 Homologous Protein |
| LIE | Liechtenstein (ISO 3166 Trigram) |
| ROL | Romanian Leu (ISO 4217 Currency Code) |
| MANPADS | MAN-Portable Air Defence System |
| UKR | Ukraine (ISO 3166 Trigram) |
| UUA | Unitarian Universalist Association |
| TS | Terasiemens - Thunderstorm (METAR Code) - Tunisia (FIPS 10-4 Country Code) -TinySex - Transsexual |
| WLN | Walloon Language (ISO 639-2 Code) |