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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.

Historians widely interpret such violence as a counterrevolutionary response to the strength of socialist and labor movements after the First World War.

From Salon • Mar. 28, 2026

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

She said she attend the event to "remember all those who lost their lives during the First World War and in subsequent conflicts".

From BBC • Nov. 9, 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

Just after the First World War, Lewis Terman, a young professor of psychology at Stanford University, met a remarkable boy named Henry Cowell.

From "Outliers" by Malcolm Gladwell