mastermind

/ˈmæstərˌmaɪnd/
verb
  1. To plan and direct a complex project or activity, often in a clever or secretive way.
    • He masterminded the company's expansion into new markets.
    • The criminals masterminded a daring escape from prison.
    • The team masterminded a surprise party for their teacher.
noun
  1. A person who plans and directs a complex project or activity, especially a crime or scheme.
    • She was the mastermind of the school's fundraising campaign.
    • The tech company's success was due to the mastermind who designed its software.
    • The police arrested the mastermind behind the bank robbery.
  2. A very intelligent or creative person.
    • My grandfather was a chess mastermind who could beat anyone in the neighborhood.
    • The young inventor was hailed as a mastermind for her groundbreaking ideas.
    • He's a mastermind when it comes to solving puzzles.
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