Dictionary
2 ENTRIES FOUND:

world war

noun

: a war involving many nations of the world

Full Definition of WORLD WAR

:  a war engaged in by all or most of the principal nations of the world; especially capitalized both Ws :  either of two such wars of the first half of the 20th century

Examples of WORLD WAR

  1. He fought in both World Wars.
  2. The nations were prepared for world war.

First Known Use of WORLD WAR

1909

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