alarm clock

noun

Synonyms of alarm clocknext
: 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.
Sunlit suites feature perks like rainfall showers, reading nooks, and smart Loftie alarm clocks while its in-house cafe serves up superfood smoothies and grain bowls for health-conscious travelers. Lori Keong, Architectural Digest, 7 Sep. 2026 There was no need for an alarm clock this morning to get me up and rolling with another edition of Friday Screencaps. Joe Kinsey Outkick, FOXNews.com, 4 Sep. 2026 Habity Design The Habity bedside clock looks like a familiar retro alarm clock, but inside sits a low-power e-paper screen, a speaker, and a small collection of calming sounds. New Atlas, 18 Aug. 2026 Considering that the app in question might be an alarm clock or a calendar, allowing that permission may not immediately ring any alarm bells. Alan Henry, PC Magazine, 31 July 2026 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 14 Sep. 2026.

Kids Definition

alarm clock

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

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