Why
WordNet

noun


(1)   The cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'
WiktionaryText

Adverb



  1. For what cause, reason, or purpose.
    Why did you do that?

Noun



  1. The reason.
    A good article will cover the who, the what, the when, the where, the why and the how.

Interjection



  1. Exclamation of mild surprise.
    Why, I think it would work fine!
 
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