Subitizes is valid Scrabble Word

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

Definitions for SUBITIZES in dictionary:

Words related to SUBITIZES

subitize19
Find what other words can be done using letters: "subitizes"
https://scrabble-word.com/finder/subitizes
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