| Acronym | Meaning |
| SMTP | Simple Mail Transfer Protocol |
| HEB | Hebrew Language (ISO 639-2 Code) |
| IRBM | Intermediate Range Ballistic Missile |
| ITAS | Improved Target Acquisition Sight |
| CR | Coral Sea Islands (FIPS 10-4 Territory Code) - Costa Rica (ISO 3166 Digram) |
| CI | Curie |
| BSOD | Blue Screen Of Death (distinct From BSD) |
| DLR | Deutsches Zentrum Fr Luft- Und Raumfahrt (German |
| IMRO | Irish Music Rights Organisation |
| HLVW | Heavy Logistics Vehicle |