authorization code

noun [C]

Definition

› BANKING, COMMERCE a set of numbers, or letters and numbers, usually sent as an electronic message from a bank, which shows that a customer's payment by credit card was officially approved: If an approval is given with an authorization code, be sure to record this information on the sales slip.

› IT a set of numbers and letters that you must type into a computer system to prove that you have official permission to use software or equipment, change a website, etc.: An authorization code is required when transferring domains from one registrar to another. → Compare password

(Definition of authorization code noun from the Cambridge Business English Dictionary © Cambridge University Press)

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