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English definition of “when”

when

conjunction, adverb [not gradable]  /hwen, wen, hwən, wən/ us  

when conjunction, adverb [not gradable] (AT WHAT TIME)

at what time; at the time at which: When is supper going to be ready? When did the American Civil War begin? I was just getting into the shower when the phone rang.

when

conjunction  /hwen, wen, hwən, wən/ us  

when conjunction (CONSIDERING THAT)

considering the fact that: I can’t really call myself a vegetarian when I eat fish.

when conjunction (ALTHOUGH)

despite the fact that: He says he hasn’t got any money when the truth is he’s got plenty.
(Definition of when from the Cambridge Academic Content Dictionary © Cambridge University Press)
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