| Acronym | Meaning |
| TGIF | Thank God It's Friday |
| NAO | UK National Audit Office |
| USNA | United States National Arboretum - United States Naval Academy |
| LRAD | Long Range Acoustic Device (ell-rad) |
| SECDEF | (U.S.) Secretary Of Defense |
| SUI | Sonic User Interface |
| TRU | Transuranic |
| NORAD | North American Aerospace Defense Command |
| ONCE | Organizaci›n Nacional De Ciegos Espa?oles (Spanish |
| TIC | Troops In Contact |