Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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wen [or] hwen
parts of speech:
adverb, conjunction, pronoun, noun
part of speech: adverb
definition 1: at what time.
When will you come?
definition 2: at which time; on what occasion.
When is it proper to object?
part of speech: conjunction
definition 1: at or during the time that; on occasion that.
He will sleep late when he is on vacation.
definition 2: every time that; as soon as.
The dog barks when the doorbell rings.
definition 3: at the moment that.
He smiled when he saw her.
definition 4: considering that; if.
It is not wise to travel when you are sick.
part of speech: pronoun
definition 1: what time.
Since when have you owned this car?
definition 2: which time.
They left for the store an hour ago since when we have not spoken to them.
part of speech: noun
definition: the time or date of something.
the whens and wheres of the matter