world war

noun

Synonyms of world warnext
: 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.
Over the past 150 years, these companies survived industrial upheaval, world wars, and massive technological shifts by repeatedly reinventing themselves. Kaif Shaikh, Interesting Engineering, 21 Jan. 2026 And it's worked to prevent world wars. ABC News, 18 Jan. 2026 Trump’s stance in Venezuela is consistent with a geopolitics based on raw power and spheres of influence—the very sort that produced two world wars in the 20th century. Garry Kasparov, The Atlantic, 10 Jan. 2026 Through two world wars, a Great Depression, and social upheaval, booms and busts, California endured. Sacramento Bee Staff, Sacbee.com, 8 Jan. 2026 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 25 Jan. 2026.

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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