monitor

nouns

someone who supervises (an examination)
monitor, proctor
someone who gives a warning so that a mistake can be avoided
admonisher, monitor, reminder
display produced by a device that takes signals and displays them on a television screen or a computer monitor
monitor, monitoring device
electronic equipment that is used to check the quality or content of electronic transmissions
monitor
is a part of
a telecommunication system that transmits images of objects (stationary or moving) between distant points
television, television system
is a type of (narrower)
equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
electronic equipment
a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble
monitor
is a type of (narrower)
equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
electronic equipment
any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles
monitor, monitor lizard, varan

verbs

keep tabs on; keep an eye on; keep under surveillance
"we are monitoring the air quality"; "the police monitor the suspect's moves"
monitor, supervise
is derived from
monitoring
check, track, or observe by means of a receiver
monitor
is a type of (narrower)
watch attentively
"Please observe the reaction of these two chemicals"
observe