promoter Meaning, Definition & Usage

  1. noun someone who is an active supporter and advocate
    plugger; booster.
  2. noun a sponsor who books and stages public entertainments
    impresario; showman.

WordNet

Pro*mot"er noun
Definitions
  1. One who, or that which, forwards, advances, or promotes; an encourager; as, a promoter of charity or philosophy. Boyle.
  2. Specifically, one who sets on foot, and takes the preliminary steps in, a scheme for the organization of a corporation, a joint-stock company, or the like.
  3. One who excites; as, a promoter of sedition.
  4. An informer; a makebate. Obs. Tusser.

Webster 1913