Is “Kafir” a Scrabble word?
Yes
KAFIR
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 Kafir
/ˈkɑːfɪə/
noun
1.A disbeliever, a denier: someone who denies the truths from Allah; or more broadly any non-Muslim.