| Acronym | Meaning |
 | FW | Femtowatt |
| NKVD | Narodnyi Komissariat Vnutrennikh Del (Russian People's Commissariat Of Internal Affairs) (1934-1954) |
| NAEC | U.S. Naval Air Engineering Center |
| ICNI | Integrated Communication |
| DAQ | Data Acquisition -Delivered Audio Quality |
| WWJD | What Would Jesus Do? (see WWWD) |
| YTS | Youth Training Scheme |
| NHS | National Health Service (UK) |
| NAAD | North American Air Defense |
| CAA | Canadian Automobile Association - (NORAD) Center For Aerospace Analysis - (U.S.) Center For Army Analysis - (U.S.) Clean Air Act - (U.S. Army) Concepts Analysis Agency - Civil Aviation Authority - Colonial Athletic Association |
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