alarm clocknoun [ C ]uk /əˈlɑːm ˌklɒk/ us /əˈlɑːrm ˌklɑːk/ also alarm
My alarm clock went off at 7.30.
I've set the alarm for 7.30.
- Didn't you hear your alarm clock going off this morning?
- He woke up with a jerk when the alarm clock went off.
- This alarm clock takes two medium-sized batteries.
- Anne's alarm clock rang for half an hour before she woke.
- He set his alarm clock for 7.00 a.m.
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