adv
when
WEHN
adv
1
Used to ask or refer to a point in time.
"When does the movie start?"
"I don't know when she'll arrive."
conj
1
At the time that; as soon as.
"Call me when you get home."
2
Considering that; given that.
"Why buy a new one when this still works fine?"
intj
1
Used to tell someone to stop pouring or adding something, typically in response to "say when."
"Just say when — I'll keep pouring until you do."
How to Use When
Learner’s notesIn plain EnglishThe main word for asking about or referring to time.
Common pairings
when it comes to
say when
since when
Word Forms
whens plural
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_____ does the movie start?
Etymology
From Old English hwonne, from a Proto-Germanic root meaning "at what time" — related to "who" and "what."