• Anything that assures a certain outcome.
  • A legal assurance of something, e.g. a security for the fulfillment of an obligation.
  • More specifically, a written declaration that a certain product will be fit for a purpose and work correctly; a warranty
  • The person to whom a guarantee is made.
  • A person who gives such a guarantee; a guarantor.



Similar words


  • From Old French guarantie (perhaps via a later Spanish garante), from the verb guarantir, ultimately from Old Frankish *warjand, *warand, or from guaranty. guaranty, and warranty.

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