identification

noun6

1. •
   the act of saying or showing who someone is or what something is

   • In many network protocols, identification is complemented by authentication.
2. •
   The combination of identifying (which one, which thing) and validating the identity (proving or confirming it); identifying and authenticating viewed as a unitary concept in cognition.

   • Much education and experience is required for proper identification of bird species.
3. •
   The state of being identified.

   • The problem's identification was the first step toward dealing with it.
4. •
   A particular instance of identifying something.
5. •
   A document or documents serving as evidence of a person's identity.

   • The authorities asked for his identification.
6. •
   A feeling of support, sympathy, understanding, or belonging towards somebody or something.

   • Though born in New York, he was motivated by a passionate identification with Russia and its culture - he was known to his Russian readers as Pavel Khlebnikov. — 2004