potbelly vs corporation

potbelly and corporation both are nouns.

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

As nouns, potbelly and corporation are synonyms defined as:

Other synonyms of potbelly include bay window, pot, tummy.

potbelly (noun)	corporation (noun)
a bulbous stove in which wood or coal is burned	slang for a paunch
slang for a paunch	a business firm whose articles of incorporation have been approved in some state