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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.

Halperin’s accusers were gobsmacked to see Kelly, who’d once given them a sympathetic platform on the Today show, turn around and mastermind his comeback.

From Slate • May 6, 2026

The two days of fierce fighting also killed Defence Minister Sadio Camara -- seen as the mastermind behind the junta's pivot to Russia.

From Barron's • Apr. 29, 2026

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

From Los Angeles Times • Apr. 8, 2026

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

From BBC • Feb. 19, 2026

They sat at their table in the library, and James explained the mastermind code he’d come up with over the weekend, every so often looking over to where Maddie sat.

From "Book Scavenger" by Jennifer Chambliss Bertman