Greatests is valid Scrabble Word

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

Definitions for GREATESTS in dictionary:

Words related to GREATESTS

greatest9

Similar words containing GREATEST without suffix s

greatest9
Find what other words can be done using letters: "greatests"
https://scrabble-word.com/finder/greatests
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