mastermind

1 of 2

noun

mas·​ter·​mind ˈma-stər-ˌmīnd How to pronounce mastermind (audio)
ˌmas-tər-ˈ
Synonyms of mastermindnext
: 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
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.
Noun
Brown’s mastermind approach supports successful individuals struggling to manage newfound wealth over the long term. Lyssanoel Frater, USA Today, 17 Mar. 2026 Series mastermind Mike White is the writer, director, and executive producer. Joe Otterson, Variety, 17 Mar. 2026
Verb
As the story goes, fresh off university and broke in 1996, Ralph Anderl, alongside friends Philipp Haffmans and Harald Gottschling, masterminded the screwless invention, decided to apply it to stainless-steel eyewear and wore some prototype pairs to a gallery event in Berlin. Martino Carrera, Footwear News, 20 Mar. 2026 Former Ohio House Speaker Larry Householder is serving 20 years in prison for masterminding the scheme. Julie Carr Smyth The Associated Press, Arkansas Online, 12 Mar. 2026 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 23 Mar. 2026.

Kids Definition

mastermind

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

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