• Something that provides assurance or confirmation; a guarantee or proof: a warrant of authenticity; a warrant for success.
  • A warrant officer.
  • (New Zealand) A Warrant of Fitness; a document certifying that a motor vehicle meets certain standards of safety and mechanical soundness.
  • Authorization or certification; sanction, as given by a superior.
  • (law) A judicial writ authorizing an officer to make a search, seizure, or arrest or to execute a judgment.

    "an arrest warrant issued by Thai supreme court"

  • (finance) An option, usually with a term at issue greater than a year, usually issued together with another security, to buy other securities of the issuer.
  • (obsolete) A protector or defender.
  • An order that serves as authorization, especially: A voucher authorizing payment or receipt of money.
  • A certificate of appointment given to a warrant officer.


  • (transitive) To guarantee as being true; (colloquially) to believe strongly.

    "That tree is going to fall, I'll warrant."

  • (transitive) To justify; to give grounds for.

    "Circumstances arose that warranted the use of lethal force."

  • (transitive) To guarantee (something) to be (of a specified quality, value etc.).
  • (transitive) To authorize; to give (someone) warrant or sanction (to do something).

    "I am warranted to search these premises fully."

  • (obsolete, transitive) To protect, keep safe (from danger).
  • (obsolete, transitive) To give (someone) a guarantee or assurance (of something); also, with double object, to guarantee (someone something).

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