Efficiences is valid Scrabble Word

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

Definitions for EFFICIENCES in dictionary:

Words related to EFFICIENCES

efficience20

Similar words containing EFFICIENCE without suffix s

efficience20
Find what other words can be done using letters: "efficiences"
https://scrabble-word.com/finder/efficiences
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