[ hwi~nät ], verb
1. an exclamation reversing a negative, as in
[Q] “I don′t think I can do that.”
[A] “And why not?
2. used to introduce a proposal, as in
“Why not try turning the handle in the other
direction to see if that opens the window?”
3. a question that begs an answer
4. a statement of possibilities, as in
“Why not do that!”