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noun [countable] killer pronunciation in American English /ˈkɪlər/ 
Word Forms
  1. 1
    someone who kills another person

    The young woman's killer has not yet been found.

    a hired/trained killer

    a child/cop killer (=someone who has killed a child or police officer)

    1. a.
      something that kills people

      Cancer is the second largest killer in the U.S.

      a killer disease/virus


a paid holiday given to a new employee before they start their job

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selfie stick

an expandable stick which you attach to a mobile phone or camera to help you take a selfie …

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