1. to make cosmopolitan; to give a cosmopolitan character or outlook to a person, place, or culture
Usage: chiefly British spelling (American: cosmopolitanize); transitive verb

Examples

• The city's growing immigrant population helped cosmopolitanise its cultural landscape.
• Travel and education can cosmopolitanise a person's perspective on world affairs.
• International trade has cosmopolitanised the fashion industry.
• Universities aim to cosmopolitanise their student bodies through global recruitment.
• The influx of diverse cuisines has cosmopolitanised the local dining scene.
• Media and technology continue to cosmopolitanise societies worldwide.