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.
Best known for their viral sound machines and alarm clocks, Hatch is constantly promoted on TikTok, just one of countless companies whose products promise to fix sleep patterns and help people wake up easier. Ct Jones, Rolling Stone, 29 Oct. 2025 In your bedroom, avoid using bright alarm clocks and sleeping near windows, if possible. Kristen Rogers, CNN Money, 27 Oct. 2025 There are two separate alarm clocks, so couples can set individual alarms based on their schedules. Christopher Murray May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 27 Oct. 2025 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 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 31 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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