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.
Hatch Restore 2 Part sunrise alarm clock, part sleep coach, the Hatch Restore 2 helps users wind down with calming routines and wake up gradually using personalised light and sound. Kate Hardcastle, Forbes.com, 26 Mar. 2025 But even a less-intense option for morning light, like a sunrise alarm clock, may be a sleep-regulating addition when getting some real sun isn’t possible. Erica Sloan, SELF, 24 Mar. 2025 Keep these devices out of the bedroom, replacing them with attractive objets and an old-school alarm clock. Miranda Silva, Architectural Digest, 17 Mar. 2025 This is easy to achieve with smart lighting, smart bulbs, and even some smart alarm clocks—such as the Hatch Restore 3 (8/10, WIRED Recommends), which is a sound machine and a sunrise alarm all rolled into one. Louryn Strampe, WIRED, 9 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

Browse Nearby Words

Cite this Entry

“Alarm clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alarm%20clock. Accessed 31 Mar. 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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