monitor

(n) someone who supervises (an examination) proctor,
(n) someone who gives a warning so that a mistake can be avoided admonisher, reminder,
(n) an ironclad vessel built by Federal forces to do battle with the Merrimac
(n) display produced by a device that takes signals and displays them on a television screen or a computer monitor monitoring device,
(n) electronic equipment that is used to check the quality or content of electronic transmissions
(n) a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble
(n) any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles monitor lizard, varan,

(v) keep tabs on; keep an eye on; keep under surveillance
- we are monitoring the air quality
- the police monitor the suspect's moves
supervise,
(v) check, track, or observe by means of a receiver

proctor supervise admonisher reminder monitoring device monitor lizard varan

monitoring monitoring device monitoring program monitor lizard monitor program monitory