Longwalls is valid Scrabble Word

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

Definitions for LONGWALLS in dictionary:

Words related to LONGWALLS

longwall12

Similar words containing LONGWALL without suffix s

longwall12
Find what other words can be done using letters: "longwalls"
https://scrabble-word.com/finder/longwalls
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