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Definition alarm in British English

alarm verb

[transitive] verb
/əˈlɑː(r)m/
1

to make someone frightened or worried that something unpleasant or dangerous might happen

Example

I don't want to alarm you but I think there is a serious problem.

Example

School officials were alarmed by the number of children with the disease.

Synonyms and related words
2

to fix an alarm to something

Synonyms and related words
Definition alarm in British English