| Acronym | Meaning |
| ATSDR | Agency For Toxic Substances And Disease Registry |
| VNIR | Visible And Near InfraRed |
| PVE | Player Versus Environment |
| ARTCC | Air Route Traffic Control Center |
| ASD(SO&HA) | (U.S.) Assistant Secretary Of Defense (Special Operations & Humanitarian Assistance) |
| ESL | English As A Second Language |
| KX | Cayman Airways (IATA Airline Designator) |
| PIRA | Provisional Irish Republican Army |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| IANAL | I Am Not A Lawyer |