why
whyadverb
UK/waɪ/US/waɪ/
QUESTION
A1used to ask the reason for something
- Why are you late?
- Why didn't you call me?
REASON
A2used to talk about the reason for something
- I don't know why she left.
- That's why I moved to the city.
SUGGESTING
A2used to make a suggestion
- Why don't we eat out tonight?
- Why not ask your teacher?