| Acronym | Meaning |
 | HF | Hafnium |
| LRAD | Long Range Acoustic Device (ell-rad) |
| JOA | Joint Operations Area |
| ARC | Arc-second Raster Chart - Association For Retarded Citizens - Appalachian Regional Commission |
| CUB | Cuba (ISO 3166 Trigram) |
| SONFI | (i) Switched Off And Not Flippin Interested |
| TSA | Theatre Storage Area - Time Slot Allocation - Transportation Security Administration |
| UMES | University Of Maryland Eastern Shore |
| DBBL | (U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory |
| XVIII | Eighteen (in Roman Numerals) |
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