| Acronym | Meaning |
| PPQN | Pulses Per Quarter Note (ditto) |
| G | Gauss |
| BR | Bromine |
| JWP | Joint Warfare Publication |
| IND | India (ISO 3166 Trigram) |
| OS | Ossetic Language (ISO 639-1 Code) |
| CCIT | Comit? Consultatif International T?l?graphique (French For International Telegraph Consultative Committee |
| WHAM | Wisconsin Hydrogen-Alpha Mapping (telescope) |
| TWP | Technical Working Paper |
| HKD | Hong Kong Dollar (ISO 4217 Currency Code) |