Define why. why synonyms, why pronunciation, why translation, English dictionary definition of why. adv. For what purpose, reason, or cause; with what intention, justification, or motive: Why is the door shut?
an introductory expression of surprise, disagreement, indignation, etc: why, don't be silly! Etymology: Old English hwī; related to Old Norse hvī, Gothic hveileiks what kind of, Latin quī
Why is an interrogative adverb that can be used alone and shows emotions like surprise or anger. For example: I went to Siberia.
