Blockhole is valid Scrabble Word

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

Definitions for BLOCKHOLE in dictionary:

Words related to BLOCKHOLE

blockholes21

Words that contain BLOCKHOLE

blockholes21
Find what other words can be done using letters: "blockhole"
https://scrabble-word.com/finder/blockhole
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