supervisor Meaning, Definition & Usage

  1. noun one who supervises or has charge and direction of
  2. noun a program that controls the execution of other programs
    supervisory program; executive program.

WordNet

Su`per*vis"or noun
Definitions
  1. One who supervises; an overseer; an inspector; a superintendent; as, a supervisor of schools.
  2. A spectator; a looker-on. Obs. Shak.

Webster 1913