Yaff is valid Scrabble Word

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

Definitions for YAFF in dictionary:

Words related to YAFF

bark10 yaffed16 yaffing17 yaffs14
Find what other words can be done using letters: "yaff"
https://scrabble-word.com/finder/yaff
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