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

USIR is

  • United States Inter-Regional Championships

More Meanings For USIR:

  • Update Salary Increase Rank
  • United States Inter-Regional Championships

USIR is also in:

Acronym Definition Searched: RTN CH 06497 BFH SJ GSDM WAFL 28031 ECC PICC COSA ACFE GLOW JDWM DD