Director

One who, or that which, directs; one who regulates, guides, or orders; a manager or superintendent.

One of a body of persons appointed to manage the affairs of a company or corporation; as, the directors of a bank, insurance company, or railroad company.

A part of a machine or instrument which directs its motion or action.

A slender grooved instrument upon which a knife is made to slide when it is wished to limit the extent of motion of the latter, or prevent its injuring the parts beneath.

member of a board of directors

the person who directs the making of a film

someone who supervises the actors and directs the action in the production of a show