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English definition of “authorization”

authorization

noun [C or U] (UK usually authorisation)     /ˌɔː.θər.aɪˈzeɪ.ʃən/ US  /ˌɑː.θɚ-/
official permission for something to happen, or the act of giving someone official permission to do something: This information cannot be disclosed without authorization from a minister. [+ to infinitive] The authorization to sell the shares arrived too late.Allowing and permitting
(Definition of authorization noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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