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.
Pillow-top mattresses encased in Italian linens, bespoke furnishings, ROIL and Natura Bisse bath products, Bluetooth alarm clocks with USB ports, and a modern beach house vibe are found in all, while suites have separate living rooms. Condé Nast, Condé Nast Traveler, 2 June 2026 Even within the walls of the apartment, there was the hum of the refrigerator, the soft ticking of a radio alarm clock and the clock in the VCR, the submarine tlack of the cassette reversing in the answering machine, and other little noises. Wyatt Williams, Harpers Magazine, 2 June 2026 The alarm clock, or your internal alarm clock, still goes off at the same time. James Mayer Jr, Forbes.com, 1 June 2026 The Mini Restful combines an air purifier and alarm clock in one compact bedside device, while the ComfortPure offers cooling, heating and purification for larger spaces up to 1,690 square feet. Tory Johnson, ABC News, 18 May 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

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Cite this Entry

“Alarm clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alarm%20clock. Accessed 5 Jun. 2026.

Kids Definition

alarm clock

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

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