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
New food options at the Charlotte ballpark Charlotte Knights executive chef Jamerius Sims is a creative mastermind. Alex Zietlow, Charlotte Observer, 26 Mar. 2026 Series mastermind Mike White is the writer, director, and executive producer. Joe Otterson, Variety, 17 Mar. 2026
Verb
Court records show Wamuigah participated in a business email compromise scheme masterminded by Okechuckwu Valentine Osuji of Nigeria. Staff Report, Hartford Courant, 29 Mar. 2026 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 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 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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