Bootstrappers is valid Scrabble Word

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

Definitions for BOOTSTRAPPERS in dictionary:

Similar words containing BOOTSTRAPPER without suffix s

bootstrapper18
Find what other words can be done using letters: "bootstrappers"
https://scrabble-word.com/finder/bootstrappers
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