a member of an aristocracy, esp. a noble.

a person who has the tastes, manners, etc., characteristic of members of an aristocracy.

an advocate of an aristocratic form of government.

anything regarded as the best, most elegant, or most stylish of its kind

the aristocrat of California wines.

noun

commoner , plebian , proletariat

noun

blueblood , gentleperson , lace curtain , noble , patrician , peer , silk stocking , swell * , upper cruster , bas bleu , blue-blood , blue blood , bluestocking , brahmin , elite , grandee , nobility , nobleman , parvenu , patriciate , ritzy , royalty