| Acronym | Meaning |
| PB | PolyButylene |
| DCOM | Disney Channel Original Movie |
| IR | Infrared - Intelligence Requirement (military) -Iran (FIPS 10-4 Country Code; ISO 3166 Digram) - Iran Air (IATA Alpha Code) See Entry For More |
| NH | New Hampshire (postal Symbol) - New Hebrides (ISO 3166 Digram; Obsolete 1980) - Vanuatu (FIPS 10-4 Country Code; From New Hebrides) |
| LAN | Local Area Network |
| OSDL | Open Source Development Labs |
| KW | Kilowatt |
| HDRA | Henry Doubleday Research Association |
| YSI | Young Scots For Independence |
| WHI | Women's Health Initiative |