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call in - 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/theycall in
he/she/itcalls in
present participlecalling in
past tensecalled in
past participlecalled in

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  1. 1
    [transitive] to ask a person or organization that provides a service to come and deal with something
    The company has called in the police to investigate.
  2. 2
    [intransitive] to telephone a radio or television program with a comment or question
    It’s a hot topic, and people have been calling in all morning.
  3. 3
    [transitive] to ask or tell someone to come to a place, usually so that you can talk to them
    The manager called me in and demanded an explanation.
  4. 4
    [intransitive] same as call1
    call in to do something: I called in to see Jeff yesterday.
    call in on: She wondered whether to call in on Mark on the way home.
  5. 5
    [intransitive] to telephone the place where you work and say where you are or what you are doing
    Al is at a conference this week, but he calls in every day.
See also main entry: call


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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