<p><strong>Noun</strong></p><ul><li>authorization, sanction, or justification.</li><li>something that serves to give reliable or formal assurance of something; guarantee, pledge, or security.</li><li>Synonyms: surety, warranty.</li><li>something considered as having the force of a guarantee or as being positive assurance of a thing: The cavalry and artillery were considered sure warrants of success.</li><li>a writing or document certifying or authorizing something, as a receipt, license, or commission.</li><li>Synonyms: chit, order, voucher, permit, writ.</li><li>Law: an instrument, issued by a magistrate, authorizing an officer to make an arrest, seize property, make a search, or carry a judgment into execution.</li><li>the certificate of authority or appointment issued to an officer of the armed forces below the rank of a commissioned officer.</li><li>a warehouse receipt.</li><li>a written authorization for the payment or receipt of money: a treasury warrant.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to give authority to; authorize.</li><li>to give reason or sanction for; account for: The circumstances warrant such measures.</li><li>Synonyms: vindicate, validate, uphold, justify.</li><li>to give one's word for; vouch for (often used with a clause to emphasize something asserted): I'll warrant he did!</li><li>Synonyms: swear, attest, guarantee.</li><li>to give a formal assurance, or a guarantee or promise, to or for; guarantee: to warrant someone honorable treatment; to warrant payment; to warrant safe delivery.</li><li>to guarantee the quantity, quality, and other representations of (an article, product, etc.), as to a purchaser.</li><li>to guarantee or secure title to (the purchaser of goods); assure indemnification against loss.</li><li>Law: to guarantee title of an estate or other granted property (to a grantee).</li></ul><p><strong>End of Response</strong></p>