• To protect, keep safe (from danger).
  • To give (someone) an assurance or guarantee (of something); also, with a double object: to guarantee (someone something).
  • To guarantee (something) to be (of a specified quality, value, etc.).
  • To guarantee as being true; to believe strongly.
  • To authorize; to give (someone) sanction or warrant (to do something).
  • To justify; to give grounds for.


  • The noun is derived from Middle English warant, from Anglo-Norman warrant, Old Northern French warant, warand, a variant of Old French guarant, garant, garand (modern French garant), from Frankish *warand, present participle of *warjan. The word is cognate with Old High German werento.
  • The verb is derived from Middle English warrant, waranten, from Anglo-Norman warantir, warandir, warentir, and Old Northern French warandir, warantir, variant forms of Old French guarantir (modern French garantir), a Romance formation from the noun guarant: see above.

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