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plunge - definition and synonyms


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verb plunge pronunciation in American English /plʌndʒ/
Word Forms
present tense
present participleplunging
past tenseplunged
past participleplunged
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  1. 1
    [intransitive] to fall quickly from a high position
    It was still dark when the helicopter plunged 500 feet into the ocean.
    His car had plunged off the mountain road in heavy rain.
    1. a.
      [transitive] to make someone or something fall quickly from a high position
      The wind suddenly shifted and they were both plunged off the cliff.
    2. b.
      [intransitive] to slope downward suddenly
      Stone steps plunged down to the basement.
  2. 2
    [transitive] to suddenly put someone or something in a much less successful situation, or to be suddenly put in such a situation
    A string of recent defeats has plunged the team dangerously near the bottom of the table.
  3. 3
    [intransitive] if an amount or level plunges, it suddenly becomes much lower
    The temperature is expected to plunge below zero tonight.
  4. 5
    [intransitive/transitive] to move quickly in an uncontrolled way, or to make someone or something move in this way
    He plunged toward the door and wrenched it open.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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