| Acronym | Meaning |
| YT | Yoctotesla |
| NH | New Hampshire (postal Symbol) - New Hebrides (ISO 3166 Digram; Obsolete 1980) - Vanuatu (FIPS 10-4 Country Code; From New Hebrides) |
| HKS | HyperKinetic Syndrome |
| MON | Mongolian Language (ISO 639-2 Code) |
| SNE | Synthetic Natural Environment |
| BMEWS | Ballistic Missile Early Warning System (bee-mews) |
| RHU | Replacement Holding Unit |
| RIAA | Recording Industry Association Of America |
| CSI | See Entry |
| POI | Program Of Instruction |