| Acronym | Meaning |
| G20 | Group Of 20 (G8 + Argentina |
| CTBT | Comprehensive [Nuclear] Test Ban Treaty |
| MLW | Mean Low Water (nautical Charts) |
| WYSIWYG | What You See Is What You Get (pronounced Wizzy-wig. See Entry For Derived Acronyms) |
| DFAD | Digital Feature Analysis Data (dee-fad) |
| SAGAT | Situation Awareness Global Assessment Technique |
| HTS | High-Temperature Superconducting Wire |
| AMCB | U.S. Army/Marine Corps Board |
| OSIA | (U.S.) On-Site Inspection Agency |
| LNB | Low-Noise Block (Satellite Dish) |