Ums is valid Scrabble Word

Is ums a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is ums valid Words with Friends?
Words with Friends NO

Definitions for UMS in dictionary:

Words related to UMS

um4 ummed10 umming11
Find what other words can be done using letters: "ums"
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