gibbosity vs wart

gibbosity and wart both are nouns.

Word	Noun	Adjective	Verb	Adverb
gibbosity	Yes	No	No	No
wart	Yes	No	No	No

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

gibbosity: something that bulges out or is protuberant or projects from its surroundings
wart: any small rounded protuberance (as on certain plants or animals)

Other hyponyms of gibbosity include frontal eminence, occipital protuberance, belly, caput, mogul, nub, nubble, snag.

gibbosity (noun)	wart (noun)
something that bulges out or is protuberant or projects from its surroundings	(pathology) a firm abnormal elevated blemish on the skin; caused by a virus
	any small rounded protuberance (as on certain plants or animals)
	an imperfection in someone or something that is suggestive of a wart (especially in smallness or unattractiveness)