Shatterproof is valid Scrabble Word

Is shatterproof a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is shatterproof valid Words with Friends?
Words with Friends YES

Definitions for SHATTERPROOF in dictionary:

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