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

The Restore 3 has been the one to get for years, until Hatch recently released its Sleep Clock—a new take on the popular sunrise alarm clock that actually tracks your sleep quality without a screen or wearable. — Kelsey Fogarty, PC Magazine, 7 Oct. 2026

Alongside wireless lamps and smart calendars, the current shortlist includes candle warmer lamps, heated throw blankets, essential-oil diffusers, sunrise alarm clocks and rainfall showerheads. — Lauren Jarvis-Gibson, Charlotte Observer, 30 Sep. 2026

At the historic Rose Bridge Farm in Dresher, Pennsylvania, there's no alarm clock quite like a cow's morning moo. — Wakisha Bailey, CBS News, 29 Sep. 2026

But the day to day starts every time your alarm clock goes off. — Scott Snider, Forbes.com, 29 Sep. 2026

Word History

First Known Use

1662, in the meaning defined above

Rhymes for alarm clock

• aftershock
• antiknock
• arawak
• hollyhock
• interlock
• manioc
• shuttlecock
• tomahawk
• weathercock
• alcock
• beanstalk
• bedrock

Kids Definition

alarm clock

noun

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