Platt is valid Scrabble Word

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

Definitions for PLATT in dictionary:

How to use PLATT in a sentence

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