Antipill is valid Scrabble Word

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

Definitions for ANTIPILL in dictionary:

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