nosedive - definition and synonyms

noun [countable] mainly journalism 

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  1. 1
    a sudden reduction in prices, profits etc
    go into a nosedive:

    The company’s share price went into a nosedive yesterday.

    take a nosedive:

    The value of the pound took another nosedive today.

    1. a.
      a sudden end to success

      After the failure of the film his career took a nosedive.

       Synonyms and related words
  2. 2
    an occasion when a plane suddenly falls out of the sky with its nose pointing down
    go into a nosedive:

    Onlookers saw the plane go into a nosedive.