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clear up - definition and synonyms


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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



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phrasal verb
Word Forms
present tense
I/you/we/theyclear up
he/she/itclears up
present participleclearing up
past tensecleared up
past participlecleared up
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  1. 1
    [intransitive] if the weather clears up, the clouds or rain go away
    It’s supposed to clear up tonight.
  2. 2
    [intransitive/transitive] to make a place tidy by removing things that you have finished using or no longer want
    I’ll clear up if you want to go to bed.
    They started clearing up the mess.
  3. 3
    [transitive] to solve a problem or a mystery
    Obviously the misunderstanding will have to be cleared up.
    The case was never cleared up.
  4. 4
    [intransitive/transitive] if an illness clears up, or if something clears it up, you stop being affected by it
    Most colds clear up after a few days.
    a lotion to clear up spots
See also main entry: clear


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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