Definition of “world” - Learner’s Dictionary


noun us uk /wɜːld/
the world

A1 the Earth and all the people, places, and things on it:

Everest is the highest mountain in the world.
She's travelled all over the world.

More examples

B1 [ C ] the people and things that are involved in a particular activity or subject:

the world of politics
the developing/industrialized/Western, etc world

a particular area of the Earth

the plant/animal, etc world

plants/animals, etc as a group

your world

A2 your life and experiences:

His whole world fell apart when she left.

(Definition of “world noun” from the Cambridge Learner's Dictionary © Cambridge University Press)