aristocrat vs prince

aristocrat and prince both are nouns.

Word	Noun	Adjective	Verb	Adverb
aristocrat	Yes	No	No	No
prince	Yes	No	No	No

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

aristocrat: a member of the aristocracy
prince: a male member of a royal family other than the sovereign (especially the son of a sovereign)

aristocrat (noun)	prince (noun)
a member of the aristocracy	a male member of a royal family other than the sovereign (especially the son of a sovereign)