世界 (shì jiè): 세계; 세계; 지구와 그 위의 모든 사람과 사물; 특정 영역, 범위 또는 활동 영역

There are many different countries in the world.

I want to travel around the world.

Music is her own world.

People all over the world are paying attention to this issue.

This book takes you into the world of animals.