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alarm clock

alarm clock

42 1.0
A clock that wakes you at a set time by making a sound
  • noun
  • /əˈlɑrm klɑk/
translation icon : despertador
  • Every night, I place my alarm clock on the bedside table so I can hear it in the morning.

Did you wake up to an alarm clock or an opportunity clock?

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Examples

  • Half asleep, Tor reached for the alarm clock and saw that it was only five o'clock.

    Fiction book (1995)
  • The annoying sound in his ears is the buzz of his alarm clock.

    Fiction book (1992)
  • Then when your alarm clock goes off, just get up.

  • So set your alarm clock people.

  • What happened to the alarm clock?

  • But usually if I wake up that that much before my alarm clock, I'll go back to sleep.

  • And that's why we actually use alarm clocks to wake us up.

  • The only time I use an alarm clock is on ski days and when I've got a flight to catch.

  • The first thing she heard when she walked in the door was the alarm clock; its ticking was excruciatingly loud.

    Fiction book (1995)
  • Well, the Ruggie is an alarm clock that's more like a bath mat.

Synonyms

alarm
vsalarm clock
842 1.0

A device that makes a loud sound to warn or wake people

is a timed device set to wake people at a chosen time
clock radio
vsalarm clock
9 2.6

A radio with a clock that you set to switch on or off at a chosen time

is a timed device that makes a sound or other signal to wake
wake-up call
vsalarm clock
5 2.7

A phone call arranged to wake someone at a set time

is a timed device that wakes someone without using the telephone

How Loud

siren
259 2.9
alarm
842 1.0
alarm clock
42 1.0
to chime
61 3.0

Surface Forms

alarm clock singular
alarm clocks plural

Morphology

alarm + clock

The meaning 'a clock that warns or wakes someone' is directly compositional from 'alarm' (a signaling/warning device) + 'clock' (a timekeeping device); the compound simply specifies the clock's function. This noun+noun formation is a regular, cross-linguistically common pattern and would be immediately clear to a B1 learner who knows both constituents.

Etymology

Alarm clock is made from alarm (a loud warning) and clock (a tool that shows time). Long ago people used bells as 'alarms' to warn or call others, and when clocks were made to sound that warning at a set time to 'wake' someone, they were called 'alarm clocks', so the name means a clock that wakes you.