civil defense

noun

: the system of protective measures and emergency relief activities conducted by civilians in case of hostile attack, sabotage, or natural disaster

Examples of civil defense in a Sentence

She's in training to be part of the local civil defense. the head of civil defense
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Onlookers were silent as a human chain of civil defense workers and volunteers carefully extracted the person from within the ruins. Gonzalo Zegarra, CNN Money, 29 June 2026 Weeks after his sentencing, Fox News Digital has learned a team of civil defense attorneys has joined his fight to appeal his conviction and sentencing. Kelsie Cairns, FOXNews.com, 23 June 2026 Israeli strikes killed at least 16 people the following day, including two children, according to Lebanon’s civil defense agency, and its health ministry said that the latest action brought the nation’s death toll above 4,000. Rebecca Schneid, Time, 21 June 2026 Israelis were told to follow instructions from civil defense authorities regarding staying close to and entering safe rooms. Scott Peterson, Christian Science Monitor, 8 June 2026 See All Example Sentences for civil defense

Word History

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of civil defense was in 1939

Browse Nearby Words

Cite this Entry

“Civil defense.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/civil%20defense. Accessed 6 Jul. 2026.

Kids Definition

civil defense

noun
: protective actions and emergency relief activities carried on by civilians in case of enemy attack or natural disaster

More from Merriam-Webster on civil defense

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster