Postsynchronise is valid Scrabble Word

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

Definitions for POSTSYNCHRONISE in dictionary:

Words related to POSTSYNCHRONISE

postsynchronize34
Find what other words can be done using letters: "postsynchronise"
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