paunch vs bay window

paunch and bay window both are nouns.

Word	Noun	Adjective	Verb	Adverb
paunch	Yes	No	No	No
bay window	Yes	No	No	No

As nouns, bay window is a hyponym of paunch; that is, bay window is a word with a more specific, narrower meaning than paunch:

Other hyponyms of paunch include corporation, pot, potbelly, tummy.

paunch (noun)	bay window (noun)
a protruding abdomen	a window that sticks out from the outside wall of a house
	slang for a paunch