plagiarism

noun

pla·​gia·​rism ˈplā-jə-ˌri-zəm How to pronounce plagiarism (audio)
also -jē-ə-
1
: an act or instance of plagiarizing
2
: something plagiarized
plagiarist
ˈplā-jə-rist How to pronounce plagiarism (audio)
also -jē-ə
noun
plagiaristic
ˌplā-jə-ˈri-stik How to pronounce plagiarism (audio)
also -jē-ə-
adjective

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Common Misspellings

plagarism, plagerism, plagirism

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The Kidnapping Roots of Plagiarize

If schools wish to impress upon their students how serious an offense plagiarism is, they might start with an explanation of the word’s history. Plagiarize (and plagiarism) comes from the Latin plagiarius “kidnapper.” This word, derived from the Latin plaga (“a net used by hunters to catch game”), extended its meaning in Latin to include a person who stole the words, rather than the children, of another. When plagiarius first entered English in the form plagiary, it kept its original reference to kidnapping, a sense that is now quite obsolete.

Examples of plagiarism in a Sentence

The student has been accused of plagiarism.
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.
From Tech-Centric To Teacher-Centric For years, EdTech adoption has focused on novelty and operational efficiency, such as grading automation, digital records and plagiarism checks. Dr Aishah Alyammahi, Forbes.com, 25 June 2026 Other research on high school cheating found in 2020 that 64% of 70,000 high school students across the country admitted to cheating on a test, and 58% admitted to plagiarism. Austin Sarat, Fortune, 23 June 2026 Directed by Son Jae-gon and starring Gang Dong-won, Uhm Tae-goo, and Park Ji-hyun, the film tracks a faded first-generation K-pop co-ed dance trio making a reckless attempt to stage a comeback two decades after a plagiarism scandal dissolved their careers. Naman Ramachandran, Variety, 22 June 2026 And whether teschers want to admit it or not, AI plagiarism detectors aren’t all that great, so error rates alone raise doubts about relying on them. Michelle L. Quinn, Chicago Tribune, 21 June 2026 See All Example Sentences for plagiarism

Word History

First Known Use

1621, in the meaning defined at sense 1

Time Traveler
The first known use of plagiarism was in 1621

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Cite this Entry

“Plagiarism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plagiarism. Accessed 27 Jun. 2026.

Kids Definition

plagiarism

noun
pla·​gia·​rism ˈplā-jə-ˌriz-əm How to pronounce plagiarism (audio)
1
: an act of plagiarizing
2
: something plagiarized
plagiarist noun
plagiaristic adjective

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