Proper noun
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Earth: the Earth (our earth).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: The Universe: our universe.
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Existence.
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The Third World (the third world).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The First World (the first world).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The Second World (the second world).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The Fourth World (the fourth world).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The Industrialized World (the industrialized world).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The Developed World (the developed world).
The specific world, or any of several specific constituent worlds, that humans live in, among any other (real or possible) worlds: Any of the (conceptually figurative) worlds that constitute (or have formerly been asserted to constitute) the world, as for example: The Developing World (the developing world).