Incretion is valid Scrabble Word

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

Definitions for INCRETION in dictionary:

Words related to INCRETION

incretionary17 incretions12 incretory14
Find what other words can be done using letters: "incretion"
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