why (EN)

adverb, noun, interjection

adverb “why”

1. asking for the cause, reason, or purpose of something
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   Why did you decide to become a teacher?
2. used to suggest something when not expecting a real answer
   Why don't you take a break?
3. used in questions to suggest there is no need to do something
   Why worry about the rain when we can have fun indoors?
4. (relative) used to talk about the reason for a statement
   He asked why she was crying.

noun “why”

1. the cause, reason, or purpose of something
   She always asked the whys behind her parents' rules, wanting to understand their reasoning.

interjection “why”

1. an dated way to express surprise, annoyance, or impatience
   Why, I had no idea you were coming today!