1. the act or process of recognizing or establishing who someone is or what something is
2. official documents that prove who you are
3. a strong feeling of sharing the same characteristics or beliefs as someone else

Examples

• The identification of the suspect took several hours.
• Police asked to see his identification at the checkpoint.
• You need proper identification to board the plane.
• The witness made a positive identification of the thief.
• Her identification with the main character made the book more meaningful.
• Fingerprint identification helped solve the case.
• Don't forget to bring photo identification to the exam.