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World War III

American  

noun

  1. a hypothetical world war of the future, often conceived as a nuclear war resulting in the total destruction of the human race.


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.

See Examples For:

Elsewhere, AFP saw one man begging and another with a sign reading "Stop World War III!"

From Barron's Jun. 27, 2026

“Will we,” he asks, “look back at this moment and realize that World War III had already started, and we just didn’t know it?”

From The Wall Street Journal Apr. 16, 2026

Recent disreputable media sources have referred to World War III and talked about who would most likely be drafted to fight in that war.

From Salon Jan. 16, 2026

Static on the radio warns that World War III might be underway.

From Los Angeles Times Dec. 5, 2025

Finally, with hindsight, how close did the world really come to World War III in October 1962?

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

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