casualty
Americannoun
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Military.
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a member of the armed forces lost to service through death, wounds, sickness, capture, or because their whereabouts or condition cannot be determined.
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casualties, loss in numerical strength through any cause, as death, wounds, sickness, capture, or desertion.
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one who is injured or killed in an accident.
There were no casualties in the traffic accident.
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any person, group, thing, etc., that is harmed or destroyed as a result of some act or event.
Their house was a casualty of the fire.
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a serious accident, especially one involving bodily injury or death.
noun
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a serviceman who is killed, wounded, captured, or missing as a result of enemy action
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a person who is injured or killed in an accident
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a hospital department in which victims of accidents, violence, etc, are treated
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anything that is lost, damaged, or destroyed as the result of an accident, etc
Other Word Forms
Noun Inflected Forms
Etymology
Origin of casualty
First recorded in 1375–1425; casual + -ty 2; replacing late Middle English casuelte, equivalent to casuel ( casual ) + -te -ty 2
Explanation
In wartime, you'll hear the word casualty used often for someone killed or injured. But casualty can also refer to deaths or injuries suffered in an accident or some other unfortunate event. The term "casualties of war" has been around for a while and refers to the ugly downside of military victory. Anyone who loses life or limb, either in the fighting or as a civilian, is called a casualty. You can also use this word figuratively: if a local elementary school loses funding for their art classes and after-school activities, you can say that the students are casualties of budget cuts.
Vocabulary lists containing casualty
The Things They Carried
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The American Civil War
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A Long Way Gone
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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.
New reads abound for your vacation tote throughout the weeks of July, with fiction picks featuring a Carnival cruise casualty, a highly entertaining jewel heist at the Waldorf-Astoria, and a Soviet-era madcap adventure.
From Los Angeles Times • Jul. 2, 2026
There has been increased scrutiny of whether Rodríguez’s government will allow independent media and aid groups to operate freely and provide transparent casualty figures.
From The Wall Street Journal • Jun. 26, 2026
The World Health Organization said the immediate needs included mass casualty management and trauma care, particularly in areas with collapsed buildings.
From Barron's • Jun. 26, 2026
"Our findings significantly shift tubulin's role in neurodegeneration, from a passive casualty of disease to an active protector against toxic protein aggregation," Ferreon said.
From Science Daily • Jun. 21, 2026
The bust had extracted a terrible toll, and the list of people and institutions that had been destroyed read like a horrible casualty list.
From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger
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.
