ID for learners of EnglishPowered by COBUILD (aɪ diː)
If you have ID or an ID, you are carrying a document such as an identity card or driving licence which proves that you are a particular person. ⇒ I had no ID on me so I couldn't prove I was the owner of the car. ⇒ Peter took out his wallet and showed his ID to the man. ⇒ Registrars checked the ID cards of prospective voters.