Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 53M is...

53M is

  • Silver City Airpark Airport, Alpena, Michigan USA

53M is also in:

Acronym Definition Searched: CMH EBNA GGRE AOU OKQ CHUCK PSI O GWM IRAC 36064 HC COORAUTH 31058 UPEN