| Acronym | Meaning |
| NAU | Nauruan Language (ISO 639-2 Code) |
| XMSF | EXtensible Modelling And Simulation Framework |
| BOHICA | Bend Over |
| OGD | Other Government Department |
| WTH | What The Hell |
| INST | Information Standards And Technology |
| IC | Ice Crystals (METAR Code) - Iceland (FIPS 10-4 Country Code) -Integrated Circuit |
| GMI | Generic Model Interface - Geometry Model Instance |
| AIC | African Independent Church |
| UM | U.S. Minor Outlying Islands (postal Symbol; ISO 3166 Digram) |