When we say world wht does it mean, is it earth

When we say world, it can refer to several things:

1. Earth: Most commonly, it refers to the planet Earth, including all its inhabitants and environments.
2. Human society: It can also refer to human civilization, culture, and all human affairs.
3. A specific domain: Sometimes, "world" is used to describe a particular sphere of activity or interest, such as the "business world" or the "art world."