clock in
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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]
QUIZ
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Question 1 of 7
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Words nearby clock in
cloche, clock, clocker, clock golf, clock-hour, clock in, clock jack, clocklike, clockmaker, clock off, clock on
The American Heritage® Idioms Dictionary
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