Rockbound is valid Scrabble Word

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

Definitions for ROCKBOUND in dictionary:

How to use ROCKBOUND in a sentence

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