Preworn is valid Scrabble Word

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

Definitions for PREWORN in dictionary:

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