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require

verb [T]
 
 
/rɪˈkwaɪər/ US  /-ˈkwaɪr/

Definition

B1 to need something or make something necessary: Please phone this number if you require any further information. Skiing at 80 miles per hour requires total concentration. [+ obj + to infinitive ] Bringing up children often requires you to put their needs first. You are required by law to stop your car after an accident. [+ that] The rules require that you bring only one guest to the dinner.Lacking thingsScarce, inadequate and not enoughEssential or necessaryEssential or necessary
(Definition of require verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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