Cosmopolitan

/ˌkɒz.məˈpɒl.ɪ.tən/

Slang Meanings

A term to describe someone who is trendy or fashionable due to their worldly experiences.
She's so cosmopolitan; she always knows the latest trends from around the world.
Referring to someone who is cultured and sophisticated.
After all her travels, she's become quite cosmopolitan.