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call on - definition and synonyms

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phrasal verb [transitive]
Word Forms
present tense
I/you/we/theycall on
he/she/itcalls on
present participlecalling on
past tensecalled on
past participlecalled on
  1. 1

    call on


    call upon

    call on someone/something to do something to officially ask a person or organization to do something

    The human rights group has called on the US to end the death penalty.

  2. 2
    call on someone to visit someone, usually for a short time

    We could call on my parents if we have time.

  3. 3
    call on something to decide to use something that someone can offer you

    We may need to call on professional help.

  4. 4
    call on something to produce a particular quality in yourself, especially by making a great effort

    She called on all her reserves of courage to face the ordeal ahead of her.

  5. 5
    call someone on something informal to ask someone to prove a statement they have made
See also main entry: call


a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

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a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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