Is “Mutt” a Scrabble word?
Yes
MUTT
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Mutt
/mʌt/
noun
1.A mongrel dog (or sometimes cat); an animal of mixed breed or uncertain origin.
2.(sometimes derogatory) A person of diverse ancestry.
3.An idiot, a stupid person.