| Acronym | Meaning |
| WH | Wehrmacht Heer (German WW2 Army Vehicle Licence Plate Code) |
| HLL | High-Level Language |
| IHO | International Hydrographic Organization |
| BRN | Brunei (ISO 3166 Trigram) |
| RHU | Replacement Holding Unit |
| MW | Milliwatt |
| NARA | (U.S.) National Archives And Records Administration |
| JFACTSU | U.S. Joint Forward Air Control Training And Standards Unit |
| DCW | Digital Chart Of The World |
| SCFM | Standard Cubic Foot Per Minute (unit Of Measurement Of Fluid Flow) |