World War III
Americannoun
Usage
What is World War III? World War III or World War Three (WW3) is a hypothetical, catastrophic global conflict.
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.
These pages are full of people with anxieties and worries — from worrying about World War III to a retiree with $1 million who is riddled with financial security.
From MarketWatch • Oct. 10, 2025
World War III hasn’t started yet, but it’s time to wake up and watch out.
From Salon • Apr. 16, 2024
“We debated health care and taxes, which is reasonable,” he said, adding, “Civil war? No. World War III? No, no, no.”
From New York Times • Jan. 13, 2024
But he doesn’t want World War III — especially with nuclear weapons.
From Seattle Times • Jul. 12, 2023
One issue outlined horrific prophecies, graphically illustrated, of what Armstrong predicted would be World War III, when the United States and Great Britain would be destroyed by a United States of Europe.
From "Endgame" by Frank Brady
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.