📖 WordNook

essential

adjective
  1. defining rights and duties as opposed to giving the rules by which rights and duties are established
    substantive
  2. basic and fundamental
    “the essential feature”
  3. of the greatest importance
    crucialall-importantall importantof the essence
  4. absolutely necessary
    indispensable
  5. being or relating to or containing the essence of a plant etc
    “essential oil”
noun
  1. anything indispensable
    necessaryrequisiterequirementnecessity