International Englishneutralformal
- A person who conceives, organizes, and directs a complex or ingenious enterprise, operation, or plot, often the principal planner behind a scheme.
International Englishinformal
- An exceptionally intelligent or strategic person, often praised or referred to humorously as the chief thinker in a group.
International Englishneutralformal
- To plan, organize, and direct (a complex operation, project, or scheme), especially with skill or cunning.