How to Pronounce "mastermind"
word
Definition
A person who plans and directs a difficult or complex project, often secretly. It can also be used as a verb to mean organizing or controlling something important.
Listen in Context
She is the mastermind of this science project.
They masterminded the school's charity event.
Everyone knows Mark is the real mastermind pulling the strings.
He was the mastermind behind the bank robbery.