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English definition of “why”


adverb     /waɪ/
A1 used to ask or talk about the reasons for something: Why didn't you call me? I wonder why he didn't come. So that's the reason why he asked her!Question words and expressions
Why don't you?/Why not do sth? A2 used to make a suggestion : Why don't you come with us? Why not give it a try ?Suggestions and proposals
why not? informal B1 used to agree with something that someone has suggested : "Let's have an ice cream ." "Yes, why not?"Question words and expressions
(Definition of why adverb from the Cambridge Learner's Dictionary © Cambridge University Press)

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