potbelly vs potbelly stove

potbelly and potbelly stove both are nouns.

Word	Noun	Adjective	Verb	Adverb
potbelly	Yes	No	No	No
potbelly stove	Yes	No	No	No

As nouns, potbelly and potbelly stove are synonyms defined as:

potbelly and potbelly stove: a bulbous stove in which wood or coal is burned

potbelly (noun)	potbelly stove (noun)
a bulbous stove in which wood or coal is burned	a bulbous stove in which wood or coal is burned
slang for a paunch