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.
Standouts include the Oura Ring Gen3 Heritage and viral alarm clock, the Hatch Restore 3, which both rarely go on sale. Lily Wohlner, Allure, 9 Oct. 2025 This is an alarm clock and sound machine in one, with a huge bank of various sounds and meditations, as well as a customizable light show for winding down and waking up. Julia Harrison, Architectural Digest, 8 Oct. 2025 Snap up a Hatch sunrise alarm clock and the Beats Studio Pro, which Oprah named a Favorite Thing. Isabel Garcia, PEOPLE, 8 Oct. 2025 This includes the scented candle that was a signature of the original store, which shuttered in 2017, and a reissue of Abloh’s spin on the Braun BC02 alarm clock. Joelle Diderich, Footwear News, 30 Sep. 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

Browse Nearby Words

Cite this Entry

“Alarm clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alarm%20clock. Accessed 10 Oct. 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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