Supersound is valid Scrabble Word

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

Definitions for SUPERSOUND in dictionary:

Words related to SUPERSOUND

supersounds14

Words that contain SUPERSOUND

supersounds14
Find what other words can be done using letters: "supersound"
https://scrabble-word.com/finder/supersound
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