(physics) An interpretation of quantum mechanics that claims to resolve all the "paradoxes" of quantum theory by allowing every possible outcome to every event to define or exist in its own "history" or "world".

Laborers are encouraged to unionize or otherwise engage in collective action on a global scale in order to use the strength of their numbers to obtain better conditions.

(US) The president of the United States.

Alternative spelling of World War II

World War III

A constructed language used as both an international auxiliary language and a shorthand system.

Alternative form of World War I

(UK) To pause and remain still whilst doing nothing but surveying the environment around oneself.

(Britain, humorous) Intentional misrendering of the proverb "the world is one's oyster".

(hyperbolic, chiefly UK, Australia) Everyone; a great crowd; a jumbled assortment of people.