Definition of "ID"

ID

/aɪˈdiː/

noun
countable and uncountable, plural IDs
1. Abbreviation of identification / identifier / identity document.
2. (music) An electronic music track without an official title.
3. (radio, television) An ident.
  Quotations
  If not done at the top of the hour, however, the station ID should come at the next possible break in the programme.
  2015, Simran Kohli, The Radio Jockey Hand Book, page 93
4. Abbreviation of identifier.
5. Initialism of intellectual disability.
6. Initialism of intelligent design.
7. Initialism of industrial design.
8. Initialism of inside diameter.
9. Initialism of inner diameter.
10. Initialism of internal diameter.
11. Initialism of industry discount.
12. (nutrition) Initialism of iron deficiency.
proper noun
1. Abbreviation of Idaho.
verb
third-person singular simple present IDs or ID's, present participle IDing or ID'ing, simple past and past participle IDed or ID'ed or ID'd
1. (transitive) To identify (an object, etc.).
2. (transitive) To request to see a person’s identification for proof of identity or age.
  Quotations
  Anyway, Margiotti found the guard and showed him the picture. He ID'ed it. Sort of. It was dark.
  2007, Jane Haddam, Conspiracy Theory: A Gregor Demarkian Novel‎
3. (intransitive) To identify (as something)