boil vs gumboil

boil and gumboil both are nouns.

Word	Noun	Adjective	Verb	Adverb
boil	Yes	No	Yes	No
gumboil	Yes	No	No	No

As nouns, gumboil is a hyponym of boil; that is, gumboil is a word with a more specific, narrower meaning than boil:

boil (noun)	gumboil (noun)
the temperature at which a liquid boils at sea level	a boil or abscess on the gums
a painful sore with a hard core filled with pus

boil (verb)	gumboil (verb)
immerse or be immersed in a boiling liquid, often for cooking purposes
come to the boiling point and change from a liquid to vapor
bring to, or maintain at, the boiling point
be in an agitated emotional state
be agitated