/ ˌaɪ ˈdiː; NAmE / noun , verb
■ noun
1.
[ U , C ] an official way of showing who you are, for example a document with your name, date of birth and often a photograph on it (abbreviation for 'identity' or 'identification') :
You must carry ID at all times.
The police checked IDs at the gate.
an ID card
2.
[ C ] identification :
The police need a witness to make a positive ID.
—see also caller ID
■ verb
( ID's , ID'ing , ID'd , ID'd ) [ vn ] ( informal ) = identify