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
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
Every scam didn’t need a clever mastermind; in fact, many seemed to somehow spring from a collective imagination. Snigdha Poonam, The Dial, 28 Oct. 2025 Head coach Brian Schottenheimer is an offensive mastermind, but is sitting in his first year of head-coaching experience. Luca Evans, Denver Post, 24 Oct. 2025
Verb
Sabine would soon mastermind the largest scientific enterprise of his era. Literary Hub, 27 Oct. 2025 The elaborate scheme, masterminded by members of four Mafia families in collusion with celebrity athletes, ensnared unsuspecting victims, bleeding them of over $7 million through cunning deception, prosecutors said in the indictment. Alaa Elassar, CNN Money, 27 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 31 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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