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require

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verb [transitive] British English pronunciation: require /rɪˈkwaɪə(r)/ 
Word Forms
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present tense
I/you/we/theyrequire
he/she/itrequires
present participlerequiring
past tenserequired
past participlerequired
  1. 1
    to need someone or something

    Working with these children requires a great deal of patience.

    a medical condition requiring urgent treatment

    The cause of the accident is still unclear and requires further investigation.

  2. 2
    if a rule, law, contract etc requires something, you must do that thing

    Car insurance is required by law in most countries.

    No previous knowledge of Arabic is required for admission to the university.

    require someone to do something:

    The agreement requires all parties to renounce the use of violence.

    be required to do something:

    The amount that patients are required to pay has been raised.

    required reading:

    His poems are now required reading on most literature courses.

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