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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.

Lee, who died in 2015, is often credited as being the mastermind of Singapore's post colonial transformation from a resource-scarce island to one of Asia's most advanced economies.

From BBC • Apr. 9, 2026

Both men are indebted to a mastermind who organizes such jobs—Money, played by Nick Nolte.

From The Wall Street Journal • Feb. 12, 2026

Sports scientist Nomali is the mastermind - and the character through which the game is played, helped by colleagues from across the continent.

From BBC • Feb. 9, 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

She was a deductive mastermind, he supposed, but her gift wasn’t honed from training her mind for acute observation.

From "The Last Last-Day-of-Summer" by Lamar Giles