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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.

“Hannah was the mastermind who figured out four nesting possibilities.”

From Los Angeles Times • Apr. 8, 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

"He was a mastermind criminal and highly manipulative," she said.

From BBC • Feb. 11, 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

If Zeitoun was transferred to a secret prison, their lives would be reversed completely: they would go from the well-off children of a successful man to the disgraced children of a presumptive sleeper-cell mastermind.

From "Zeitoun" by Dave Eggers