| Acronym | Meaning |
 | SIAM | Society For Industrial And Applied Mathematics |
| NRO | U.S. National Reconnaissance Office |
| IW | Information Warfare |
| MTL | Maltese Lira (ISO 4217 Currency Code) -Mean Tide Level (nautical Charts) |
| HUD | Head-Up Display - Housing And Urban Development |
| OOS | Occupational Overuse Syndrome - OneSAF Objective System - Open Operating System - Out Of Service |
| USPTO | United States Patent And Trademark Office |
| HAT | Haitian Creole Language (ISO 639-2 Code) |
| KSC | Kennedy Space Center |
| BVD | Bradley |
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