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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.

Jho Low, the alleged mastermind behind the theft of $4.5 billion from Malaysia’s government investment fund, 1MDB, filed for a pardon, the Journal reported earlier.

From The Wall Street Journal • May 13, 2026

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

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

“The Gestapo could not imagine that a sixteen-year-old boy could mastermind such a conspiracy,” said Karl.

From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti




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