World

Proper noun

 * 1) The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds:
 * 2) Earth: the Earth (our earth).
 * 3) The Universe: our universe.
 * 4) Existence.
 * 5) Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example:
 * 6) The Third World (the third world).
 * 7) The First World (the first world).
 * 8) The Second World (the second world).
 * 9) The Fourth World (the fourth world).
 * 10) The Industrialized World (the industrialized world).
 * 11) The Developed World (the developed world).
 * 12) The Developing World (the developing world).