Synoecism is valid Scrabble Word

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

Definitions for SYNOECISM in dictionary:

Words related to SYNOECISM

synoecisms17 union5

Words that contain SYNOECISM

synoecisms17
Find what other words can be done using letters: "synoecism"
https://scrabble-word.com/finder/synoecism
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