- at or during the time that
- I loved history when I was at school.
- after
- Call me when you've finished.
- at any time that; whenever
- Can you spare five minutes when it's convenient?
- just after which
- He had just drifted off to sleep when the phone rang.
- considering that
- How can they expect to learn anything when they never listen?
- although
- She claimed to be 18, when I know she's only 16.
Word OriginOld English hwanne, hwenne; of Germanic origin; related to German wenn ‘if’, wann ‘when’.
Idioms
See when in the Oxford Advanced American DictionarySee when in the Oxford Learner's Dictionary of Academic Englishas and when
- used to say that something may happen at some time in the future, but only when something else has happened
- We'll decide on the team as and when we qualify.
- I'll tell you more as and when (= as soon as I can).
if and when
- used to say something about an event that may or may not happen
- If and when we ever meet again I hope he remembers what I did for him.
Check pronunciation:
when