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English definition of “authorize”

authorize

verb [T] (UK usually authorise)     /ˈɔː.θər.aɪz/ US  /ˈɑː.θɚ-/
C1 to give official permission for something to happen, or to give someone official permission to do something: Who authorized this expenditure? [+ to infinitive] I authorized my bank to pay her £3,000.Allowing and permitting authorized (UK usually authorised)     /ˈɔː.θər.aɪzd/ US  /ˈɑː.θɚ-/ C1 This is a restricted area, open to authorized (= permitted) personnel only.Allowing and permitting
(Definition of authorize verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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