plunge - definition and synonyms

noun [countable] 

Your browser doesn’t support HTML5 audio

/plʌndʒ/
singularplunge
pluralplunges
  1. 1
    a quick fall from a high position

    the plane’s plunge into the sea

    1. a.
  2. 2
    a sudden reduction in the amount or level of something
    plunge in:

    the plunge in oil prices