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Definitions

mastermind

[mas-ter-mahynd, mah-ster-] / ˈmæs tərˌmaɪnd, ˈmɑ stər- /
VERB
plan and direct
Synonyms
STRONGEST
STRONG
WEAK


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Now, with French authorities and the U.S. Department of Justice identifying Dmitry Klyuev as the mastermind, we finally see a trial against the key perpetrator of the $230 million fraud uncovered by Sergei Magnitsky.”

From Barron's • Mar. 31, 2026

Cook was the mastermind of the strategy that made China the primary manufacturing base for Apple devices, with the vast majority of iPhones assembled by contractor Foxconn and other suppliers in Chinese factories.

From Barron's • Mar. 29, 2026

Authorities say several suspects, including the alleged mastermind, remain under active investigation, with further arrests expected.

From BBC • Feb. 19, 2026

His reputation as a mastermind on the defense certainly precedes him, and at USC, that’s where he’ll be needed most.

From Los Angeles Times • Jan. 28, 2026

The city was not only home to her dad’s literary idol, but Emily’s, too: Garrison Griswold, CEO of Bayside Press and mastermind of Book Scavenger, the coolest book-hunting game in existence.

From "Book Scavenger" by Jennifer Chambliss Bertman