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civil defense

American  

noun

  1. plans or activities organized by civilians and civilian authorities for the protection of civilian population and property in times of such disasters or emergencies as war or floods.


Etymology

Origin of civil defense

First recorded in 1935–40


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:

Taiwan began 10 days of military and civil defense exercises on Wednesday to advance its strategy for deterring a potential Chinese invasion.

From The Wall Street Journal ● Aug. 5, 2026

The boy received first aid and was immediately taken to hospital, the Jordanian civil defense said in a statement.

From Barron's ● Jun. 30, 2026

Lebanese civil defense said strikes hit half a dozen sites in the heart of Beirut—upscale neighborhoods and tourist areas outside of Hezbollah’s traditional Shia Muslim strongholds in the southern suburbs.

From The Wall Street Journal ● Apr. 17, 2026

"It requires surveys to discover and track NEOs, campaigns to characterize those that are hazardous, modeling efforts to understand and predict impact effects and associated consequences, and mitigation through impact avoidance and/or civil defense."

From Science Daily ● Oct. 31, 2025

As if striving to say something even less helpful, New York’s top civil defense official said, “As far as shelters for the majority of our citizens is concerned—of course, we don’t have any.”

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

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