Sluiciest is valid Scrabble Word

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

Definitions for SLUICIEST in dictionary:

Words related to SLUICIEST

sluice8 sluicy11
Find what other words can be done using letters: "sluiciest"
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