when Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "when" - English Dictionary

See all translations

whenadverb, conjunction

uk   us   /wen/
A1 at what time; at the time at which: "I did tell you about it." "When? I don't remember." When are you going? When's the baby due? We'll go when you're ready. Tell me when to start. Ask him when he's next coming home. When do you expect to have the project completed (by)? She was only 20 when she had her first baby. He was quite shocked when I told him. I hate it when there's no one in the office. I went there when I was a child. I was just getting into the bath when the phone rang.
More examples
Grammar

whenpronoun

uk   us   /wen/

whenconjunction

uk   us   /wen/

when conjunction (CONSIDERING THAT)

B2 considering the fact that: How can you say you don't like something when you've never even tried it! You can't complain of being lonely when you don't make any effort to meet people. Why is she training to be a teacher when she doesn't even like children? I don't suppose I can really call myself a vegetarian when I eat fish.
More examples

when conjunction (ALTHOUGH)

B2 despite the fact that: He says he hasn't got any money when in fact he's got thousands of dollars in his account. I don't understand how he can say that everything's fine when it's so obvious that it's not.
More examples
Translations of “when”
in Arabic مَتى…
in Korean 언제…
in Malaysian sedangkan…
in French alors que…
in Turkish ne zaman…
in Italian quando…
in Chinese (Traditional) 甚麼時候,何時…
in Russian когда?…
in Polish kiedy…
in Vietnamese mặc dù…
in Spanish si…
in Portuguese quando…
in Thai แม้ว่า…
in German wenn…
in Catalan quan…
in Japanese いつ…
in Indonesian padahal…
in Chinese (Simplified) 什么时候,何时…
(Definition of when from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of when?
Add Cambridge dictionaries to your browser to your website

Definitions of “when” in other dictionaries

Word of the Day
hurdle

a frame or fence for jumping over in a race

Word of the Day

Are you a glass-half-full person? (Everyday Idioms)
Are you a glass-half-full person? (Everyday Idioms)
by Kate Woodford,
July 29, 2015
A reader of this blog recently asked for a post on idioms that are used in everyday English. This seemed like a reasonable request. After all, if you are going to make the effort to learn a set of English idioms, you want those idioms to be useful. The question, then, was

Read More 

exoskeleton noun
exoskeleton noun
July 27, 2015
a robotic device which goes around the legs and part of the body of a person who cannot walk and allows them to move independently and in an upright position The device, known as an exoskeleton, is strapped to the outside of a person’s limbs and can then be controlled by them.

Read More