Dictionary

alarm clock

noun

: a clock that can be set to sound an alarm at any desired time

Full Definition of ALARM CLOCK

:  a clock that can be set to sound an alarm at a desired time
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Examples of ALARM CLOCK

  1. She set the alarm clock for six o'clock.
  2. The alarm clock went off at six o'clock.

First Known Use of ALARM CLOCK

1662
ALARM CLOCK Defined for Kids

alarm clock

noun

Definition of ALARM CLOCK for Kids

:  a clock that can be set to sound an alarm at a desired time

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