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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.

The field marshal, acting on CIA intelligence, handed over the alleged mastermind behind the 2021 Kabul airport bombing when Americans were evacuating from Afghanistan.

From BBC • Apr. 10, 2026

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

From Los Angeles Times • Apr. 8, 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

No self-respecting criminal mastermind would be caught dead even using the word lollipops.

From "Artemis Fowl" by Eoin Colfer