Yes, grum is a Scrabble word!
...and is worth 7 points in Scrabble, and 10 points in Words with Friends
Grum is a valid Scrabble word.
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What Scrabble words can I make with the letters in grum?
Words that can be created with an extra letter added to grum:
There are 2 words that can be made by adding another letter to 'grum'.