📖 WordNook

certain

adjective
  1. exercising or taking care great enough to bring assurance
    “be certain to disconnect the iron when you are through”
    sure
  2. certain to occur
    sure
  3. reliable in operation or effect
    “a quick and certain remedy”
    sure
  4. established irrevocably
    sealed
  5. established beyond doubt or question
  6. having or feeling no doubt or uncertainty
    sure
  7. definite but not specified or identified