timer

nouns

a timepiece that measures a time interval and signals its end
timer
is derived from
time
is derived from
time
is a type of (narrower)
a measuring instrument or device for keeping time
horologe, timekeeper, timepiece
(sports) an official who keeps track of the time elapsed
timekeeper, timer
is derived from
time
a regulator that activates or deactivates a mechanism at set times
timer
is derived from
time
is a type of (narrower)
a control that maintains a steady speed in a machine (as by controlling the supply of fuel)
governor, regulator