tater vs solanaceous vegetable

tater and solanaceous vegetable both are nouns.

Word	Noun	Adjective	Verb	Adverb
tater	Yes	No	No	No
solanaceous vegetable	Yes	No	No	No

As nouns, solanaceous vegetable is a hypernym of tater; that is, solanaceous vegetable is a word with a broader meaning than tater:

tater: an edible tuber native to South America; a staple food of Ireland
solanaceous vegetable: any of several fruits of plants of the family Solanaceae; especially of the genera Solanum, Capsicum, and Lycopersicon

Other hypernyms of tater include starches, root vegetable.

tater (noun)	solanaceous vegetable (noun)
an edible tuber native to South America; a staple food of Ireland	any of several fruits of plants of the family Solanaceae; especially of the genera Solanum, Capsicum, and Lycopersicon