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First World War

American  

noun

  1. World War I.


First World War British  

noun

  1. another name for World War I

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The region once belonged to the Austro-Hungarian Empire but was ceded to Italy as part of a First World War settlement.

From Barron's • Feb. 2, 2026

Socialist leader Eugene V. Debs was sentenced to jail in 1918 for speaking out against the First World War.

From Salon • Oct. 14, 2025

We met in groups of two or three at Oxford, with a professor who started with a question—“Was the First World War inevitable?”

From The Wall Street Journal • Oct. 9, 2025

During the First World War she moved to London to help the Worker's Suffrage Foundation campaign for women to get the vote and she never lived in Glasgow again, eventually settling in Bristol.

From BBC • Apr. 6, 2025

Between 1870 and the outbreak of the First World War, 50,000 people died in American mines.

From "A Walk in the Woods" by Bill Bryson

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