Is “Gumboil” a Scrabble word?
Yes
GUMBOIL
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 Gumboil
noun
1.A small suppurating inflamed spot on the gum.
Synonyms: parulis