dead person vs zombie

dead person and zombie both are nouns.

Word	Noun	Adjective	Verb	Adverb
dead person	Yes	No	No	No
zombie	Yes	No	No	No

As nouns, zombie is a hyponym of dead person; that is, zombie is a word with a more specific, narrower meaning than dead person:

dead person: someone who is no longer alive
zombie: a dead body that has been brought back to life by a supernatural force

Other hyponyms of dead person include infernal, living dead, zombi.

dead person (noun)	zombie (noun)
someone who is no longer alive	several kinds of rum with fruit juice and usually apricot liqueur
	a dead body that has been brought back to life by a supernatural force
	someone who acts or responds in a mechanical or apathetic way
	a god of voodoo cults of African origin worshipped especially in West Indies
	(voodooism) a spirit or supernatural force that reanimates a dead body