Frustraters is valid Scrabble Word

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

Definitions for FRUSTRATERS in dictionary:

Words related to FRUSTRATERS

frustrate12

Similar words containing FRUSTRATER without suffix s

frustrater13
Find what other words can be done using letters: "frustraters"
https://scrabble-word.com/finder/frustraters
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