Meaning of “mastermind” in the English Dictionary

"mastermind" in American English

See all translations

mastermindverb [ T ]

us /ˈmæs·tərˌmɑɪnd/

to plan and direct a difficult activity:

Oliver masterminded the takeover of his top business competitor.
mastermind
noun [ C ] us /ˈmæs·tərˌmɑɪnd/

The mastermind behind the escape has never been identified.

(Definition of “mastermind” from the Cambridge Academic Content Dictionary © Cambridge University Press)