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Definition of fire alarm noun from the Oxford Advanced Learner's Dictionary

fire alarm

noun
 
/ˈfaɪər əlɑːm/
 
/ˈfaɪər əlɑːrm/
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  1. a bell or other device that gives people warning of a fire in a building
    • Who set off the fire alarm?
    • It was thought that the fire alarm had been set off as a prank.
    • The fire alarm went off when I was making a coffee.
    Topics Houses and homesb1
    Oxford Collocations Dictionaryverb + fire alarm
    • set off
    • install
    fire alarm + verb
    • go
    • go off
    • sound
    fire-alarm + noun
    • system
    See full entry
  2. an occasion when a fire alarm goes off
    • We had a fire alarm at work this morning.
See fire alarm in the Oxford Advanced American Dictionary
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noun
 
 
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