Something remarkable in the world.

Everybody; all the world.

plural of world clock

A clock that shows time around the globe.

Everyone; the whole world

plural of parallel world

(science fiction, sciences) A reality or world that exists simultaneously with ours, but independent of it.

The name of a number of towns and villages in English-speaking countries. / A suburb of Burgess Hill, Mid Sussex district, West Sussex, England (OS grid ref TQ3219).

(mathematics) The property of being a small-world network.

The Third World; the developing countries of Asia, Africa and Latin America.