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English definition of “alarm”

alarm

noun     /əˈlɑːm/
WARNING [C] B1 a loud noise that warns you of danger: a fire alarm to set off an alarm Threats and warningsEmergency services in general
CLOCK [C] (also alarm clock) B1 a clock that makes a noise to wake youWatches and clocks
WORRY [U] a sudden feeling of fear or worry that something bad might happen: There's no need for alarm - it is completely safe.Anxiety and worry - general wordsFear and phobiasFear and phobiasAnxiety and worry - general words
→ See also burglar alarm, false alarm, raise the alarm
(Definition of alarm noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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