| Acronym | Meaning |
| LMAO | Laughing My Ass Off (Internet Short-hand) |
| HIMEZ | High Altitude Missile Engagement Zone |
| TRL | Technology Readiness Level |
| DB | Database - Deutsche Bahn |
| GAD | Generalized Anxiety Disorder |
| TACC | Tactical Air Control Centre - (USAF) Tanker Airlift Control Center |
| UNCSGN | United Nations Conference On The Standardization Of Geographical Names |
| UM | U.S. Minor Outlying Islands (postal Symbol; ISO 3166 Digram) |
| JET | Joint European Torus |
| CH | Chamorro Language (ISO 639-1 Code) |