Mouter is valid Scrabble Word

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

Definitions for MOUTER in dictionary:

Words related to MOUTER

moutered11 mouterer10 mouterers11 moutering12 mouters9 multure9
Find what other words can be done using letters: "mouter"
https://scrabble-word.com/finder/mouter
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