An identity card is a card with a person's name, photograph, date of birth, and other information on it. In some countries, people are required to carry identity cards in order to prove who they are. a card with your name, date of birth, and photograph on it, that proves who you are = ID card
document which serves to identify a person, card which verifies the identity of a person
a card certifying the identity of the bearer; "he had to show his card to get in"