1. A member of the aristocracy; a person of noble or high social rank.
Usage: informal; chiefly British

Examples

• The aristos gathered at the country estate for the annual ball.
• She married an aristo from an old English family.
• The aristos of Europe maintained their influence through centuries of tradition.
• He was born an aristo but chose a life of public service.
• The aristos dominated the upper house of parliament.