| Acronym | Meaning |
| HZ | Hertz |
| RSPB | (UK) Royal Society For The Protection Of Birds |
| AGL | Above Ground Level |
| DOI | Digital Object Identifier - U.S. Department Of The Interior |
| FOH | Front Of House |
| BALCO | Bay Area Laboratory Co-operative |
| KATUSA | Korean Augmentation To United States Army |
| CORBA | Common Object Request Broker Architecture |
| HUM | Vee - See HMMWV |
| IMR | Inzhenernaya Mashina Razgrazhdeniya (Russian ?????????? ?????? ???????????? |