Smir is valid Scrabble Word

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

Definitions for SMIR in dictionary:

Words related to SMIR

smirr7 smirred10 smirring11 smirs7 smur6
Find what other words can be done using letters: "smir"
https://scrabble-word.com/finder/smir
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