identification card

noun
UK /aɪˌdentɪfɪˈkeɪʃən kɑːd/
US /aɪˌdentɪfɪˈkeɪʃən kɑːrd/

A small card that shows who you are.

The guard asked to see my identification card before I entered the building.

SYNONYMS

ID cardidentity cardIDbadgepass

RELATED WORDS

licensepassportcredentialsphotocardholder

OTHER MEANINGS

2. A card used to prove membership in an organization.

She showed her identification card to get into the gym.

3. A card that proves a student attends a school.

You need your student identification card to borrow books from the library.

4. A card that proves a person's age.

The clerk checked his identification card before selling him the ticket.