Eustasy is valid Scrabble Word

Is eustasy a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is eustasy valid Words with Friends?
Words with Friends YES

Definitions for EUSTASY in dictionary:

Words related to EUSTASY

eustasies9 eustatic10
Find what other words can be done using letters: "eustasy"
https://scrabble-word.com/finder/eustasy
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