(US, baseball) The best-of-seven game series played annually in late October-early November to determine the year's championship of professional baseball in the United States and Canada, played between two teams, one each in the National League and the American League.

(obsolete) The Americas. / Europe, the Americas and generally any country whose cultural and ethnic origins can mostly be traced to Europe, collectively.

A war involving the major nations of the world.

(idiomatic) The rest of the world outside of some closed, restricted, or remote environment. / (philosophy) The world external to the human mind.

The realm of human experience comprising physical objects, and excluding theoretical constructs, hypotheses, artificial environments, and "virtual" worlds such as the Internet, computer simulations, or the imagination.

The Americas and Oceania.

(idiomatic) Unlikely to endure for much more time.

Having a practicable, verifiable quality; not imaginary, theoretical or based in a non-physical realm, such as heaven or cyberspace.

The state or characteristic of being world-weary.

Death and destruction of life on Earth, especially human. / Destruction of Earth. / (idiomatic) Any change that seems catastrophic or devastating.