| Acronym | Meaning |
 | WWJD | What Would Jesus Do? (see WWWD) |
| SPIE | Originally The Society For Photo-Optical Instrumentation Engineers (SPIE - The International Society For Optical Engineering 1981?2007 |
| RSPB | (UK) Royal Society For The Protection Of Birds |
| BRM | Boyevaya Razvedyvatelnaya Mashina (Russian ?????? ???????????????? ?????? |
| ACP | Air Control Point |
| NU | Nicaragua (FIPS 10-4 Country Code) - Niue (ISO 3166 Digram) - Nunavut (postal Symbol) |
| TA | Tantalum |
| ITA | Italian Language (ISO 639-2 Code) |
| REEF | Reef Environmental Education Foundation |
| ATAS | Air-To-Air Stinger (missile) |
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