Definition of "why" []

• For what purpose, reason, or cause; with what intention, justification, or motive: Why is the door shut? Why do birds sing? (adverb)
• The reason, cause, or purpose for which: I know why you left. (conjunction)
• Usage Problem On account of which; for which: "The reason why [regular verbs] are called regular is that we can predict what all the other three forms are” ( Randolph Quirk). (conjunction)
• The cause or intention underlying a given action or situation: studying the whys of antisocial behavior. (noun)
• A difficult problem or question. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Yeah, the pillow is spelled wrong, but why are pillows the enemy and for goodness sakes *why* do we need enough self discipline to stay away from them?"
• "True true true…and why is it that ‘network news’ seem so upset in a concern-troll like way about Arm-a-dipshitwad stealing an election when they had no concern at all about Bush/Chaney stealing elections here at home..why?"
• "I cant understand why they even wanna pump the money back into the companies that are part just one part of course of the cause for all this mess..why dont they put the money in the hands of the American people and let us decide our fate..instead of our crooked greedy politicians."