war crime

noun

: a crime (such as genocide or maltreatment of prisoners) committed during or in connection with war
usually used in plural
war criminal noun

Examples of war crime in a Sentence

He was found guilty of torture and other war crimes.
Recent Examples on the Web
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Prime Minister Benjamin Netanyahu’s government has also imposed a monthlong blockade on food, fuel and humanitarian aid that has left the territory’s roughly 2 million Palestinians facing acute shortages as supplies dwindle — a tactic that rights groups say is a war crime. Samy Magdy, Chicago Tribune, 12 Apr. 2025 Prime Minister Benjamin Netanyahu’s government has also imposed a monthlong blockade on food, fuel and humanitarian aid that has left the territory’s roughly 2 million Palestinians facing acute shortages — a tactic that rights groups say is a war crime. Sam Mednick and Samy Magdy, Los Angeles Times, 12 Apr. 2025 His prosecution comes as The Gambia prepares its own war crimes tribunal to address human rights violations committed under Jammeh's rule. Gordon G. Chang, MSNBC Newsweek, 8 Apr. 2025 These killings doubled as cover for war crimes and a brutal shrug: what else to do with those cast as human refuse? James Wood, New Yorker, 7 Apr. 2025 See All Example Sentences for war crime

Word History

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of war crime was in 1906

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Cite this Entry

“War crime.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/war%20crime. Accessed 19 Apr. 2025.

Legal Definition

war crime

noun
: an act committed usually during an international war for which individual criminal liability will be imposed by a domestic or international tribunal
specifically : a violation of the laws or customs of war as embodied or recognized by international treaty, court decisions, or established practice
usually used in pl.

Note: Following World War II, the Charter of the International Military Tribunal at Nuremberg first codified war crimes including crimes against humanity. Also encompassed in the legal concept of war crimes is the crime of planning or waging a war of aggression or a war in violation of international treaties.

More from Merriam-Webster on war crime

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