Posiest is valid Scrabble Word

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

Definitions for POSIEST in dictionary:

Words related to POSIEST

posey10 posier8 posy9
Find what other words can be done using letters: "posiest"
https://scrabble-word.com/finder/posiest
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