Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym MM1 is...

MM1 is

  • Machinist's Mate First Class

MM1 is also in:

Acronym Definition Searched: OMC PDA KEO SCAR RTM 6N8 IGOSS ELM 10171 58032 WSM DMBW PPK PHL NE