first degree

1 of 2

noun

US : the level of a crime that is the most serious and warranting the most severe punishment
1
US : of the most serious type : warranting the harshest punishment
first-degree murder/theft/arson
2
: of the least harmful or mildest type
first-degree frostbite
see also first-degree burn

Examples of first degree in a Sentence

Recent Examples on the Web
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Noun
Lincoln, the nation's first degree-granting historically Black college and university, is located in Chester County and is the alma mater of Philadelphia Mayor Cherelle Parker. Frederick Sutton Sinclair, CBS News, 30 July 2026 In exchange for pleading guilty to the four counts of first degree murder and a felony burglary charge—the death penalty and the right to make an appeal—were taken off the table. Forbestv, Forbes.com, 29 July 2026
Adjective
Michael was arrested two days later, per Denver TV station KUSA, and charged with first-degree murder, use of a weapon in a violent crime, theft of $100 to $500, and abuse of a corpse. Virginia Chamlee, PEOPLE, 1 Aug. 2026 Both men are charged with first-degree murder in Furman’s death. Barbara Vitello, Chicago Tribune, 1 Aug. 2026 See All Example Sentences for first degree

Word History

First Known Use

Noun

1682, in the meaning defined above

Adjective

1851, in the meaning defined at sense 1

Time Traveler
The first known use of first degree was in 1682

Browse Nearby Words

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Cite this Entry

“First degree.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first%20degree. Accessed 2 Aug. 2026.

Medical Definition

: of the lowest or mildest in a series of categories : characterized by or causing the least harmful level of injury
a first-degree laceration
see also first-degree burn compare second-degree, third-degree

Legal Definition

first degree

noun
: the grade given to the most serious forms of crimes
burglary in the first degree
first-degree adjective
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