/ˌkɑːzməˈpɑːlɪtən/
cosmo·pol·itan
BrE /ˌkɒzməˈpɒlɪtən/
NAmE /ˌkɑːzməˈpɑːlɪtən/
(approving)
containing people of different types or from different countries, and influenced by their culture
a cosmopolitan city/resort
The club has a cosmopolitan atmosphere.
having or showing a wide experience of people and things from many different countries
people with a truly cosmopolitan outlook
cosmopolitan young people
cosmo·pol·itan
BrE /ˌkɒzməˈpɒlɪtən/
NAmE /ˌkɑːzməˈpɑːlɪtən/
a person who has experience of many different parts of the world
She’s a real cosmopolitan.