ID

Alternative forms

• (roman numeral): CDXCIX, cdxcix

Symbol

ID

1. The ISO 3166-1 two-letter (alpha-2) code for Indonesia.

Numeral

ID

1. Misspelling of CDXCIX., the Roman numeral representing four hundred and ninety-nine (499).

Pronunciation

• IPA^(key): /aɪˈdiː/

Noun

ID (countable and uncountable, plural IDs)

1. Abbreviation of identification or identity documentation.
2. Abbreviation of identifier.
3. Abbreviation of intelligent design.
4. Abbreviation of inside diameter.
5. Abbreviation of inner diameter.
6. Abbreviation of internal diameter.
7. Abbreviation of industry discount.

Proper noun

ID

1. Abbreviation of Idaho.

Verb

ID (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.

   The bartender will have to ID you before serving you a drink.

   • 2007, Jane Haddam, Conspiracy Theory: A Gregor Demarkian Novel

     Anyway, Margiotti found the guard and showed him the picture. He ID'ed it. Sort of. It was dark.

Anagrams

• DI, Di, d'I, dI, di, di-