world war

noun

: a war engaged in by all or most of the principal nations of the world
especially, World War : either of two such wars of the first half of the 20th century

Examples of world war in a Sentence

He fought in both World Wars. The nations were prepared for world war.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Cortes: America quite literally saved the world three times in the 20th century: in two world wars, and then in the Cold War. Newsweek Staff, MSNBC Newsweek, 3 July 2025 After two world wars and years of housing business tenants, the site transitioned to a Marion County Jail in the mid-1990s. Alysa Guffey, IndyStar, 2 July 2025 Iran doves within the administration and their allies are making the same disingenuous arguments that John Kerry and the gang made during the Obama administration — that the only alternative to a deal is a world war. The Editors, National Review, 29 May 2025 Unlike other war crimes codified in the aftermath of the two world wars, the use of starvation as a weapon of armed conflict was not formally prohibited in international law until 1977. Boyd Van Dijk, Foreign Affairs, 30 Apr. 2025 See All Example Sentences for world war

Word History

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of world war was in 1848

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Cite this Entry

“World war.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/world%20war. Accessed 12 Jul. 2025.

Kids Definition

world war

noun
: a war involving all or most of the chief nations of the world
especially, capitalized both Ws : either of two such wars of the 20th century

More from Merriam-Webster on world war

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