| Acronym | Meaning |
 | MLWN | Mean Low Water Neaps (nautical Charts) |
| ATSDR | Agency For Toxic Substances And Disease Registry |
| DOI | Digital Object Identifier - U.S. Department Of The Interior |
| HMD | Heard And McDonald Islands (ISO 3166 Trigram) |
| RU | Russian Language (ISO 639-1 Code) |
| ARM | Anti-Radiation Missile -Armenia (ISO 3166 Trigram) |
| MOC | Macedonian Orthodox Church - Measure Of Capability - Mission Operations Centre - My Own Creation (Lego) |
| SPAAG | Self-Propelled Anti-Aircraft Gun |
| SAAFR | Standard Use Army Aircraft Flight Route (safer) |
| LRAD | Long Range Acoustic Device (ell-rad) |
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