| Acronym | Meaning |
| HY | Armenian Language (ISO 639-1 Code) |
| IO | British Indian Ocean Territory (ISO 3166 Digram; FIPS 10-4 Territory Code) |
| LUX | Luxembourg (ISO 3166 Trigram) |
| AISB | (British Society For The Study Of) Artificial Intelligence And The Simulation Of Behaviour |
| UESAC | Uppsala-ESO Survey Of Asteroids And Comets |
| GOSC | General Officer Steering Committee |
| BARD | Binational Agricultural Research And Development Fund (between The US And Israel) |
| CD1 | Cluster Of Differentiation 1 (a Small Gene Family) |
| QWG | Quadripartite Working Group (qwig) |
| DCAA | (U.S.) Defense Contract Audit Agency |