Apr 4, 2026 · The meaning of WHY is for what cause, reason, or purpose. How to use why in a sentence. used to express surprise or anger: 3. the reasons for something: . why synonyms, why pronunciation, why translation, English dictionary definition of why. For what purpose, reason, or cause; with what intention, justification, or motive: Why is the door … Why as an interrogative adverb asks questions about the reason for something, gives suggestions, or expresses annoyance. Take a look at the uses of why and some examples: Pass in Wallet. WHY lives on your machine turning your desktop into a private intelligence layer that works while you live. / … Feb 9, 2025 · "Why?" A question as old as humanity, and as relevant today as ever. Explore the history, meaning, and necessity of the question that drives discovery from toddlers to theoretical physicists.