Concaveness is valid Scrabble Word

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

Definitions for CONCAVENESS in dictionary:

Words related to CONCAVENESS

concave14 concavenesses20

Words that contain CONCAVENESS

concavenesses20

Similar words containing NCAVENES without suffix s and without prefix co

concavenesses20
Find what other words can be done using letters: "concaveness"
https://scrabble-word.com/finder/concaveness
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