Constrainers is valid Scrabble Word

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

Definitions for CONSTRAINERS in dictionary:

Words related to CONSTRAINERS

constrain11

Similar words containing NSTRAINER without suffix s and without prefix co

constrainer13
Find what other words can be done using letters: "constrainers"
https://scrabble-word.com/finder/constrainers
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