Words similar to why

Example sentences for: why

How can you use “why” in a sentence? Here are some example sentences to help you improve your vocabulary:

Why should you give $25 to the American Cancer Society?
Why?
What the experts didn't explain was why, if the boundaries are artificial, their disintegration should be of concern.
I also learned something else: why the press is so eager for Clinton's downfall.
(Click here to read what some of them say and here to read why they say it.)