timekeeper

Noun
  1. (sports) an official who keeps track of the time elapsed (synset 110731132)
    referred to in: athletics, sport - an active diversion requiring physical exertion and competition
    is a type of: official - someone who administers the rules of a game or sport
    same as: timer
  2. A clerk who keeps track of the hours worked by employees (synset 110731019)
    is a type of: clerk - an employee who performs clerical work (e.g., keeps records or accounts)
  3. A measuring instrument or device for keeping time (synset 104445087)
    is a type of: measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
    subtypes:
    • atomic clock - a timepiece that derives its time scale from the vibration of atoms or molecules
    • clock - a timepiece that shows the time of day
    • sandglass - timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage
    • sundial - timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial
    • timer - a timepiece that measures a time interval and signals its end
    • ticker, watch - a small portable timepiece
    has:
    • balance, balance wheel - a wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat
    • dial - the face of a timepiece; graduated to show the hours
    • escapement - mechanical device that regulates movement
    • hairspring - a fine spiral spring that regulates the movement of the balance wheel in a timepiece
    • hand - a rotating pointer on the face of a timepiece
    • time-ball - a ball that slides down a staff to show a fixed time; especially at an observatory
    same as: horologe, timepiece

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