mastermind

1 of 2

noun

Synonyms of mastermind
: 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
Two years after the masterminds behind the College Football Playoff tripled the field from four to 12 teams, the annual postseason tournament is about to be expanded even further. — Anthony Crupi, Sportico.com, 15 Oct. 2026 Hairstylist Clayton Hawkins is the mastermind behind the red carpet—and totally show-stopping—looks. — Margaux Anbouba, Vogue, 15 Oct. 2026
Verb
This year’s lingerie spectacular was no different, with Dame Pat McGrath masterminding the baby winged eyeliner and pink cheeks, while Guido Palau executed the blowouts. — Violet Hayward, Vogue, 19 Oct. 2026 British prosecutors said it was masterminded by Russia’s intelligence services. — ABC News, 13 Oct. 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 22 Oct. 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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