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

USMMO is

  • United States Merchant Marine Officer

More Meanings For USMMO:

  • United States Merchant Marine Officer
  • United States Merchant Marine Officer

USMMO is also in:

Acronym Definition Searched: MARM 43550 SIM MSO 05836 FT GRE CAPE PDV OCSHA SING AUS UV-B AVL MOSA