| Acronym | Meaning |
| SETAC | Society For Environmental Toxicology And Chemistry |
| SEG | Special Escort Group |
| AGP | Accelerated Graphics Port |
| FG | Fog (METAR Code) - French Guiana (FIPS 10-4 Territory Code) |
| HALT | Hungry Angry Lonely Tired |
| OJI | Anishinaabe Language (Ojibwa) (ISO 639-2 Code) |
| ENE | East North-East |
| DTO | Disruptive Technology Office (was ARDA) |
| PLB | Personal Locator Beacon |
| C | Centi |