| Acronym | Meaning |
| PAN | STARRS -Panoramic Survey Telescope And Rapid Response System |
| GRC | Greece (ISO 3166 Trigram) |
| QA | Qatar (FIPS 10-4 Country Code; ISO 3166 Digram) |
| OIE | World Organisation For Animal Health (originally The Office International Des ?pizooties |
| TWAT | The War Against Terror |
| GNAS | Grand National Archery Society |
| CS | Czech Language (ISO 639-1 Code) |
| ACCA | Automatic Cloud Cover Assessment |
| BSE | Bovine Spongiform Encephalopathy |
| SAS | Scandinavian Airline Systems - Second Avenue Subway - Situational Awareness System - Special Air Service - Studies |