protuberance vs wart

protuberance and wart both are nouns.

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

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

protuberance: 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 protuberance include frontal eminence, occipital protuberance, belly, caput, mogul, nub, nubble, snag.

protuberance (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
the condition of being protuberant; the condition of bulging out	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)