Definition of MONITOR

  1. (noun)someone who supervises (an examination)
  2. (noun)someone who gives a warning so that a mistake can be avoided
  3. (noun)display produced by a device that takes signals and displays them on a television screen or a computer monitor
  4. (noun)electronic equipment that is used to check the quality or content of electronic transmissions
  5. (noun)a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble
  6. (noun)any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles
  7. (verb)keep tabs on; keep an eye on; keep under surveillance
  8. (verb)check, track, or observe by means of a receiver