Grandmamma is valid Scrabble Word

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

Definitions for GRANDMAMMA in dictionary:

Words related to GRANDMAMMA

grandmammas19

Words that contain GRANDMAMMA

grandmammas19

How to use GRANDMAMMA in a sentence

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