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
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.
Trump’s threat to target civilian infrastructure, a likely war crime if carried out, drew condemnation from figures ranging from Pope Leo XIV to podcaster and former MAGA ally Tucker Carlson, who pleaded with White House aides to keep the president away from the nuclear football. The Week Us, TheWeek, 13 Apr. 2026 Intentionally attacking infrastructure that also supports the well-being of civilians is a war crime. Gary Franks, Hartford Courant, 11 Apr. 2026 Iran is a 47-year-old war crime. FOXNews.com, 9 Apr. 2026 Democratic leaders — who have raised concerns about Trump’s Easter Sunday threat to wipe out Iranian civilization and said his statement amounted to threatening war crimes — afterward called on Speaker Mike Johnson (R-La.) to bring Congress back to session. Nabih Bulos, Los Angeles Times, 9 Apr. 2026 See All Example Sentences for war crime

Word History

First Known Use

1871, in the meaning defined above

Time Traveler
The first known use of war crime was in 1871

Browse Nearby Words

Cite this Entry

“War crime.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/war%20crime. Accessed 14 Apr. 2026.

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.

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