alarm clock

noun

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

Examples of alarm clock in a Sentence

She set the alarm clock for six o'clock. The alarm clock went off at six o'clock.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Plus, some offer handy features like an alarm clock, a calendar app, the ability to answer texts, and so on. Jessica Kasparian, SELF, 31 Mar. 2025 Old Electronics Items like alarm clocks and stereos in working condition are often fair game, but televisions and microwaves, for example, are not. Quincy Bulin, Southern Living, 28 Mar. 2025 Hell, there's even an alarm clock mode (talk about a wake-up call). Malia Griggs, Glamour, 24 Feb. 2025 Updated March 14, 2025 10:35 AM Wellness From sunrise alarm clocks to mouth taping, which sleep trends are actually worth it? Ryan Brennan, Charlotte Observer, 19 Mar. 2025 See All Example Sentences for alarm clock

Word History

First Known Use

1662, in the meaning defined above

Time Traveler
The first known use of alarm clock was in 1662

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Cite this Entry

“Alarm clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alarm%20clock. Accessed 22 Apr. 2025.

Kids Definition

alarm clock

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

More from Merriam-Webster on alarm clock

Last Updated: - Updated example sentences
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