Nonjoinder is valid Scrabble Word

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

Definitions for NONJOINDER in dictionary:

Words related to NONJOINDER

nonjoinders19
Find what other words can be done using letters: "nonjoinder"
https://scrabble-word.com/finder/nonjoinder
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