Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A highly intelligent person, especially one who plans and directs a complex or difficult project.
  • transitive verb To direct, plan, or supervise (a project or activity).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A person with an extraordinary intellect or skill that is markedly superior to his or her peers.
  • noun A person responsible for the highest level of planning and execution of a major operation.
  • verb To act in the role of mastermind.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun someone who creates new things
  • verb plan and direct (a complex undertaking)
  • noun someone who has exceptional intellectual ability and originality

Etymologies

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