| Acronym | Meaning |
 | NM | Nanometre |
| MRE | Meal Ready To Eat (U.S. Military Rations) |
| CITES | Convention On International Trade In Endangered Species (of Wild Fauna And Flora) (sigh-tease) |
| AYM | Aymara Language (ISO 639-2 Code) |
| SBB | German For The Swiss Federal Railways |
| IFR | Instrument Flight Rules |
| AGU | American Geophysical Union |
| 4D | Four-dimensional (usually Three Spatial Plus One Temporal Dimension |
| HZ | Hertz |
| MLT | Maltese Language (ISO 639-2 Code) |
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