| Acronym | Meaning |
| LLLTV | Low-Light Level Television |
| NUWC | U.S. Naval Undersea Warfare Center |
| TIR | Tigrinya Language (ISO 639-2 Code) |
| DIMM | Dual In-line Memory Module (computing) |
| NCW | Network Centric Warfare |
| MOSFET | Metal-Oxide-Semiconductor Field-Effect Transistor |
| SSK | Hunter-Killer Submarine (retired US Navy Hull Classification) |
| NESS | T -Near-Earth Space Surveillance - Terrestrial Project |
| IREA | Intermountain Rural Electric Association |
| BBB | Better Business Bureau - Blood-Brain Barrier |