Definition of authorize verb from the Oxford Advanced American Dictionary

authorize

verb
/ˈɔθəˌraɪz/
 
[often passive]
 
to give official permission for something, or for someone to do something
authorize somethingI can authorize payments up to $5,000.an authorized biography authorize someone to do somethingI have authorized him to act for me while I am away.The soldiers were authorized to shoot at will. see also unauthorized
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