identification
noun
uk/aɪˌdentɪfɪˈkeɪʃən/ us [ U ]
an official card or document with your name and photograph or other information on it, used for proving who you are:
provide/show identification To open a new account, the bank will require you to show four pieces of identification.
Please can I see some identification?
identification card/number/papers
See also
ID noun
[ C or U ]
the process of recognizing someone or something, and stating or proving who or what they are:
A strict legal injunction was issued banning the publication of any material that might lead to the identification of the witnesses.
form/means/proof of identification You will be asked to show your passport as proof of identification.
See also
employer identification number
PIN