Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “ID”

See all translations

ID

noun uk   /ˌaɪˈdiː/ us  

ID noun (DOCUMENT)

A2 [U] informal abbreviation for identification: any official card or document with your name and photograph or other information on it that you use to prove who you are: Do you have any ID? A driving licence or cheque card will do.

ID noun (ADDRESS)

written abbreviation for the US state of Idaho: used in addresses

ID

verb [T] uk   /ˌaɪˈdiː/ US informal us  
to look at a person or a body and say who that person is to someone in authority: He had to go to the morgue to ID the body.
(Definition of ID noun, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of ID?
Add Cambridge dictionaries to your browser to your website

Definitions of “ID” in other dictionaries

Word of the Day

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

bio-inspiration noun

April 13, 2015
the adoption of patterns and structures found in nature for the purposes of engineering, manufacturing, science, etc. The MIT researchers actually aren’t the only robotics team to turn to cheetahs for bio-inspiration.

Read More