why (EN)
adverbe, nom, interjection

adverbe “why”

why
  1. pourquoi
    Why did you decide to become a teacher?
  2. pourquoi (dans un sens rhétorique)
    Why don't you take a break?
  3. pourquoi (pour suggérer l'inutilité)
    Why worry about the rain when we can have fun indoors?
  4. pourquoi (relatif)
    He asked why she was crying.

nom “why”

sg. why, pl. whys or uncountable
  1. le pourquoi
    She always asked the whys behind her parents' rules, wanting to understand their reasoning.

interjection “why”

why
  1. une manière désuète d'exprimer la surprise, l'agacement ou l'impatience
    Why, I had no idea you were coming today!