Knobbiness is valid Scrabble Word

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

Definitions for KNOBBINESS in dictionary:

Words related to KNOBBINESS

knobbinesses20

Words that contain KNOBBINESS

knobbinesses20

Similar words containing KNOBBINES without suffix s

knobbinesses20
Find what other words can be done using letters: "knobbiness"
https://scrabble-word.com/finder/knobbiness
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