| Acronym | Meaning |
| NAVS | Non-Cooperative Airborne Vector Scoring |
| UPS | Uninterruptible Power Supply - United Parcel Service |
| NASDAQ | National Association Of Securities Dealers Automated Quotations (an American Stock Exchange). |
| LEU | Low-Enriched Uranium |
| RA | Rain (METAR Code) -Rear Area - Reinforced Alert - Republican Army - Right Ascension - Royal Artillery (UK) - Royal Academy |
| EABU | Explain Acronyms Before Use |
| PCIE | Peripheral Component Interconnect Express (computer Bus) |
| SSK | Hunter-Killer Submarine (retired US Navy Hull Classification) |
| USS | United States Ship (sometimes Meaningless; See Star Trek) |
| TZC | Tetrazolium Chloride |