| Acronym | Meaning |
 | GSO | General Services Officer (U.S. Department Of State) |
| EF | Entry Foyer |
| LMAO | Laughing My Ass Off (Internet Short-hand) |
| TRP | Target Reference Point -Time Of Reporting |
| LEMOSS | Long-Endurance MObile Submarine Simulator |
| AFROTC | Air Force Reserve Office Training Corps |
| IT | Italian Language (ISO 639-1 Code) |
| GRD | Grenada (ISO 3166 Trigram) |
| GEBCO | General Bathymetric Chart Of The Oceans |
| ARSC | Arctic Region Supercomputing Center |
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