I. ID 1 /ˌaɪ ˈdiː/ BrE AmE noun [uncountable and countable]
[ Date: 1900-2000 ; Origin: identification and identity ]
a document that shows your name and date of birth, usually with a photograph SYN identification :
I’ll need to see some ID.
a fake ID
II. ID 2 BrE AmE verb [transitive] spoken
to ↑ identify a criminal or dead body:
Police are still looking for someone who can ID the body.