World (noun)

1. The earth and all life on it, including human beings.
2. The earth as a planet.
3. The earth as a physical entity.
4. The universe and everything in it.
5. All the people living at a particular time.

Origin:

Old english worold, weoruld, of germanic origin; related to dutch wereld and german welt.

Examples:

1. The world is full of diverse cultures and beliefs.
2. I always dreamed of traveling the world and experiencing different cultures.
3. The world of science is always advancing.
4. The world's population continues to grow.
5. The world of technology has advanced rapidly in the past decade.