Comarb is valid Scrabble Word

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

Definitions for COMARB in dictionary:

Words related to COMARB

coarb9 comarbs13

Words that contain COMARB

comarbs13
Find what other words can be done using letters: "comarb"
https://scrabble-word.com/finder/comarb
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