Blockholes is valid Scrabble Word

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

Definitions for BLOCKHOLES in dictionary:

Words related to BLOCKHOLES

blockhole20

Similar words containing BLOCKHOLE without suffix s

blockhole20
Find what other words can be done using letters: "blockholes"
https://scrabble-word.com/finder/blockholes
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