brahmin vs aristocrat

brahmin and aristocrat both are nouns.

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

As nouns, aristocrat is a hypernym of brahmin; that is, aristocrat is a word with a broader meaning than brahmin:

brahmin: a member of a social and cultural elite (especially a descendant of an old New England family)
aristocrat: a member of the aristocracy

Other hypernyms of brahmin include blue blood, patrician.

brahmin (noun)	aristocrat (noun)
the highest of the four varnas: the priestly or sacerdotal category	a member of the aristocracy
a member of the highest of the four Hindu varnas
a member of a social and cultural elite (especially a descendant of an old New England family)