| Acronym | Meaning |
 | RA | Rain (METAR Code) -Rear Area - Reinforced Alert - Republican Army - Right Ascension - Royal Artillery (UK) - Royal Academy |
| AAWC | Anti-Air Warfare Commander |
| MDM | Michigan Dartmouth MIT Telescope Consortium |
| UESAC | Uppsala-ESO Survey Of Asteroids And Comets |
| JAM | Jamaica (ISO 3166 Trigram) |
| ASN | Associate Of Science In Nursing |
| EAPC | Euro-Atlantic Partnership Council |
| 3M | Minnesota Mining And Manufacturing Company |
| REACH | Registration |
| KBE | Knight Commander Of The Order Of The British Empire |
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