manslaughter

noun

man·​slaugh·​ter ˈman-ˌslȯ-tər How to pronounce manslaughter (audio)
Synonyms of manslaughternext
: the unlawful killing of a human being without express or implied malice

Examples of manslaughter in a Sentence

She was convicted of manslaughter for driving while drunk and killing three people.
Recent Examples on the Web
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The sentencing came following a trial in December that ended with a jury finding Williams-Bey guilty of first-degree manslaughter with a firearm, first-degree assault and first-degree violation of conditions of release. Justin Muszynski, Hartford Courant, 18 Feb. 2026 The Crumbley parents were each convicted of manslaughter and sentenced to 10 to 15 years in prison. Eric Levenson, CNN Money, 16 Feb. 2026 The father accused of giving his son an AR-15-style rifle as a Christmas present that prosecutors say the teenager used in a 2024 mass shooting at a Georgia high school went on trial on Monday, facing murder and manslaughter charges stemming from the shooting. Bill Hutchinson, ABC News, 16 Feb. 2026 Gray faces 29 charges, including second-degree murder and manslaughter, for allegedly providing his son, Colt Gray, with the AR-15 style rifle used in the 2024 Apalachee High School shooting. Skyler Henry, CBS News, 16 Feb. 2026 See All Example Sentences for manslaughter

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of manslaughter was in the 14th century

Browse Nearby Words

Cite this Entry

“Manslaughter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/manslaughter. Accessed 21 Feb. 2026.

Kids Definition

manslaughter

noun
man·​slaugh·​ter ˈman-ˌslȯt-ər How to pronounce manslaughter (audio)
: the unlawful killing of a person without the intention to do so

Medical Definition

manslaughter

noun
man·​slaugh·​ter ˈman-ˌslȯt-ər How to pronounce manslaughter (audio)
: the slaying of a human being
specifically : the unlawful killing of a human being without express or implied malice

Legal Definition

manslaughter

noun
man·​slaugh·​ter ˈman-ˌslȯ-tər How to pronounce manslaughter (audio)
: the unlawful killing of a human being without malice compare homicide, murder
involuntary manslaughter
: manslaughter resulting from the failure to perform a legal duty expressly required to safeguard human life, from the commission of an unlawful act not amounting to a felony, or from the commission of a lawful act involving a risk of injury or death that is done in an unlawful, reckless, or grossly negligent manner see also reckless homicide at homicide

Note: The exact formulation of the elements of involuntary manslaughter vary from state to state especially with regard to the level of negligence required. In states that grade manslaughter by degrees, involuntary manslaughter is usually graded as a second- or third-degree offense.

misdemeanor-manslaughter
: involuntary manslaughter occurring during the commission of a misdemeanor compare felony murder at murder
voluntary manslaughter
: manslaughter resulting from an intentional act done without malice or premeditation and while in the heat of passion or on sudden provocation

Note: In states that grade manslaughter by degrees, voluntary manslaughter is usually a first-degree offense.

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