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
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Noun
Eight co-conspirators were convicted, with the mastermind sentenced to 30 months in jail. Sharyn Alfonsi, CBS News, 26 Apr. 2026 Some of the masterminds behind NBC‘s Saturday Night Live Season 51 brought the laughs all the way from Studio 8H to the DGA Theater to break down the process behind keeping the iconic sketch comedy engine running after more than five decades for Deadline Contenders TV. Katie Campione, Deadline, 25 Apr. 2026
Verb
O’Neill masterminded Nike’s pivot away from wholesale, a move that ended badly when retailers started carrying all of Nike’s competitors instead, and oversaw its women’s business, which never matched its men’s line. Shelly Banjo, semafor.com, 23 Apr. 2026 Supervisor Terra Lawson-Remer has masterminded the charter rewrite, promoting it as a way to make county government more transparent and accountable to the public. Lucas Robinson, San Diego Union-Tribune, 22 Apr. 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 28 Apr. 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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