Regratings is valid Scrabble Word

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

Definitions for REGRATINGS in dictionary:

Words related to REGRATINGS

regrating11
Find what other words can be done using letters: "regratings"
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