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

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

Old Electronics Items like alarm clocks and stereos in working condition are often fair game, but televisions and microwaves, for example, are not. — Quincy Bulin, Southern Living, 19 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