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clock
3 dictionary results for: clock in
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
clock1       [klok] Pronunciation Key
–noun
1.an instrument for measuring and recording time, esp. by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about.
2.time clock.
3.a meter or other device, as a speedometer or taximeter, for measuring and recording speed, distance covered, or other quantitative functioning.
4.biological clock.
5.(initial capital letter) Astronomy. the constellation Horologium.
6.Computers. the circuit in a digital computer that provides a common reference train of electronic pulses for all other circuits.
–verb (used with object)
7.to time, test, or determine by means of a clock or watch: The racehorse was clocked at two minutes thirty seconds.
8.Slang. to strike sharply or heavily: Somebody clocked him on the face.
9.clock in, to begin work, esp. by punching a time clock: She clocked in at 9 on the dot.
10.clock out, to end work, esp. by punching a time clock: He clocked out early yesterday.
11.around the clock,
a.during all 24 hours; ceaselessly.
b.without stopping for rest; tirelessly: working around the clock to stem the epidemic.
12.clean (someone's) clock, to defeat; vanquish.
13.kill the clock, Sports. to use up as much game time as possible when one is winning, as to protect a lead in basketball, ice hockey, or football. Also, run out the clock.
14.stop the clock, to postpone an official or legal deadline by ceasing to count the hours that elapse, as when a new union contract must be agreed upon before an old contract runs out.

[Origin: 1350–1400; ME clok(ke) < MD clocke bell, clock; akin to OE clucge, OHG glocka (G Glocke), OIr clocc bell; cf. cloak]
WordNet - Cite This Source - Share This
clock in

verb
register one's arrival at work [ant: clock off

American Heritage Dictionary of Idioms - Cite This Source - Share This

clock in

Begin work, as in She clocked in late again. Also, clock out, end work, as in Please wait for me; I forgot to clock out. The allusion here is to punching a time clock, a device that punches the time on a card to record when an employee arrives and departs. [Late 1800s]


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