highball vs zombie

highball and zombie both are nouns.

Word	Noun	Adjective	Verb	Adverb
highball	Yes	No	No	No
zombie	Yes	No	No	No

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

highball: a mixed drink made of alcoholic liquor mixed with water or a carbonated beverage and served in a tall glass
zombie: several kinds of rum with fruit juice and usually apricot liqueur

Other hyponyms of highball include cobbler, collins, Tom Collins, gin and tonic, julep, mint julep, Scotch and soda, sling, zombi.

highball (noun)	zombie (noun)
a mixed drink made of alcoholic liquor mixed with water or a carbonated beverage and served in a tall glass	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