| Acronym | Meaning |
| KHM | Khmer Language (ISO 639-2 Code) |
| CAA | Canadian Automobile Association - (NORAD) Center For Aerospace Analysis - (U.S.) Center For Army Analysis - (U.S.) Clean Air Act - (U.S. Army) Concepts Analysis Agency - Civil Aviation Authority - Colonial Athletic Association |
| MSN | Master Of Science In Nursing |
| EPIRB | Emergency Position Indicating Radio Beacon |
| LNER | London And North Eastern Railway |
| USAPATRIOT | Uniting And Strengthening America By Providing Appropriate Tools Required To Intercept And Obstruct Terrorism |
| LU | Lutetium |
| SALT | Save A Life Today - Save A Life Today (SALT) Alert - Emergency Contact System |
| ZM | Zeptometre |
| BTO | Built To Order |