| Acronym | Meaning |
 | ARC | Arc-second Raster Chart - Association For Retarded Citizens - Appalachian Regional Commission |
| AXP | Ambulance EXchange Point |
| MAR | Morocco (ISO 3166 Trigram) |
| IHO | International Hydrographic Organization |
| BDFL | Benevolent Dictator For Life |
| TNO | Trans-Neptunian Object |
| SMH | Shaking My Head |
| NRA | National Rifle Association |
| ISEN | Internet Search Environment Number |
| PLAID | Precision Location And Identification |
Browse by Letter:
