mastermind

1 of 2

noun

mas·​ter·​mind ˈma-stər-ˌmīnd How to pronounce mastermind (audio)
ˌmas-tər-ˈ
: a person who supplies the directing or creative intelligence for a project

mastermind

2 of 2

verb

masterminded; masterminding; masterminds

transitive verb

: to be the mastermind of

Examples of mastermind in a Sentence

Noun the mastermind behind the terrorist plot the real mastermind behind the embezzlement scheme Verb They masterminded a unique solution to the problem. He masterminded the bank robbery.
Recent Examples on the Web
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Noun
Once enlisted, recruits rarely meet the masterminds behind the crimes, instead receiving instructions through handlers online. Emma Bussey, FOXNews.com, 30 Sep. 2025 Mommy Pai’s, the latest venture from the masterminds behind Thai Diner and the late Uncle Boons, seems to follow this road map—on paper, at least. Helen Rosner, New Yorker, 28 Sep. 2025
Verb
Four years later, police accused him of masterminding the killing of Moosewala, a Punjabi icon whose lyrics chronicled the hardships of life on the streets. Rhea Mogul, CNN Money, 7 Oct. 2025 To be sure, Ortega Pérez has masterminded the repositioning and elevation of the brand from high-street chain to cultural player through a robust collaboration strategy. Sandra Salibian, Footwear News, 2 Oct. 2025 See All Example Sentences for mastermind

Word History

First Known Use

Noun

1872, in the meaning defined above

Verb

1927, in the meaning defined above

Time Traveler
The first known use of mastermind was in 1872

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Cite this Entry

“Mastermind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mastermind. Accessed 8 Oct. 2025.

Kids Definition

mastermind

noun
mas·​ter·​mind
ˈmas-tər-ˌmīnd,
ˌmas-tər-ˈmīnd
: a person who invents or directs a project
mastermind verb

More from Merriam-Webster on mastermind

Last Updated: - Updated example sentences
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