| Acronym | Meaning |
 | TWAIN | Technology Without An Interesting Name |
| GUF | French Guiana (ISO 3166 Trigram) |
| FAAD | Forward Area Air Defence |
| JFACTSU | U.S. Joint Forward Air Control Training And Standards Unit |
| LSST | Large Synoptic Survey Telescope |
| GB | Gabon (FIPS 10-4 Country Code) - United Kingdom Of Great Britain And Northern Ireland (ISO 3166 Digram) |
| FO | Faroese Language (ISO 639-1 Code) |
| ZWD | Zimbabwe Dollar (ISO 4217 Currency Code) |
| GR | Greece (FIPS 10-4 Country Code; ISO 3166 Digram) - Hail (METAR Code) |
| PITA | Pain In The Ass |
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