medical specialty vs epidemic

medical specialty and epidemic both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical specialty	Yes	No	No	No
epidemic	Yes	Yes	No	No

medical specialty (noun)	epidemic (noun)
the branches of medical science that deal with nonsurgical techniques	a widespread outbreak of an infectious disease; many people are infected at the same time

medical specialty (adjective)	epidemic (adjective)
	(especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously