timer

Noun
  1. A timepiece that measures a time interval and signals its end (synset 104445438)
    is a type of: horologe, timekeeper, timepiece - a measuring instrument or device for keeping time
    subtypes:
    • chronograph - an accurate timer for recording time
    • parking meter - a coin-operated timer located next to a parking space; depositing money into it entitles you to park your car there for a specified length of time
    • stop watch, stopwatch - a timepiece that can be started or stopped for exact timing (as of a race)
  2. (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: timekeeper
  3. A regulator that activates or deactivates a mechanism at set times (synset 104445641)
    is a type of: governor, regulator - a control that maintains a steady speed in a machine (as by controlling the supply of fuel)

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