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[wawr-uh nt, wor-] /ˈwɔr ənt, ˈwɒr-/
authorization, sanction, or justification.
something that serves to give reliable or formal assurance of something; guarantee, pledge, or security.
Synonyms: warranty, surety.
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.
a writing or document certifying or authorizing something, as a receipt, license, or commission.
Synonyms: permit, voucher, writ, order, chit.
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.
the certificate of authority or appointment issued to an officer of the armed forces below the rank of a commissioned officer.
a warehouse receipt.
a written authorization for the payment or receipt of money:
a treasury warrant.
verb (used with object)
to give authority to; authorize.
to give reason or sanction for; account for:
The circumstances warrant such measures.
to give one's word for; vouch for (often used with a clause to emphasize something asserted):
I'll warrant he did!
Synonyms: guarantee, attest, swear.
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.
to guarantee the quantity, quality, and other representations of (an article, product, etc.), as to a purchaser.
to guarantee or secure title to (the purchaser of goods); assure indemnification against loss to.
Law. to guarantee title of an estate or other granted property (to a grantee).
Origin of warrant
1175-1225; (noun) Middle English warant < Anglo-French; Old French guarant < Germanic; compare Middle Low German warend, -ent warranty, noun use of present participle of waren to warrant; (v.) Middle English < Anglo-French warantir; Old French g(u)arantir, derivative of guarant; see guaranty
Related forms
warrantless, adjective
nonwarranted, adjective
prewarrant, noun, verb (used with object)
quasi-warranted, adjective
rewarrant, verb (used with object)
self-warranting, adjective
unwarranted, adjective
unwarrantedly, adverb
well-warranted, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for warranting
Historical Examples
  • Then, on the other hand, he has the right and duty of warranting his men.

    Domesday Book and Beyond

    Frederic William Maitland
  • The clandestine character of Mary's shore visit impressed him as warranting complete investigation.

    Good References E. J. Rath
  • He looked upon the cases, however, as showing some remarkable results, warranting a careful study.

  • warranting is the most infernal device ever brought out to make men mean and dishonest.

    A Man of Samples Wm. H. Maher
  • The example of other countries, so far from warranting any such limitation of power, is directly against it.

  • A friend of mine, J. Smith, hired a horse yesterday, the Kanaka warranting him to be in excellent condition.

    Roughing It Mark Twain (Samuel Clemens)
  • For all the intentness of her look there was no invitation in it warranting such an advance on my part.

    The Mayor's Wife Anna Katherine Green
  • It would not be truthful to say that she came on tiptoe, her build not warranting that mode of progression.

    The Grey Lady Henry Seton Merriman
  • In warranting your safe passage to the Duke's court, and your safe return from it to your own country, I think I cannot fail.

  • This exemption should not be taken as warranting a general exercise of the right of asylum on board vessels of war.

    International Law

    George Grafton Wilson and George Fox Tucker
British Dictionary definitions for warranting


anything that gives authority for an action or decision; authorization; sanction
a document that certifies or guarantees, such as a receipt for goods stored in a warehouse, a licence, or a commission
(law) an authorization issued by a magistrate or other official allowing a constable or other officer to search or seize property, arrest a person, or perform some other specified act
(in certain armed services) the official authority for the appointment of warrant officers
a security that functions as a stock option by giving the owner the right to buy ordinary shares in a company at a specified date, often at a specified price
verb (transitive)
to guarantee the quality, condition, etc, of (something)
to give authority or power to
to attest to or assure the character, worthiness, etc, of
to guarantee (a purchaser of merchandise) against loss of, damage to, or misrepresentation concerning the merchandise
(law) to guarantee (the title to an estate or other property)
to declare boldly and confidently
Derived Forms
warrantable, adjective
warrantability, noun
warrantably, adverb
warranter, noun
warrantless, adjective
Word Origin
C13: from Anglo-French warrant, variant of Old French guarant, from guarantir to guarantee, of Germanic origin; compare guaranty
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for warranting



late 13c., "to keep safe from danger," from Old North French warantir (Old French garantir), from warant (see warrant (n.)).

Meaning "to guarantee to be of quality" is attested from late 14c.; sense of "to guarantee as true" is recorded from c.1300. Related: Warranted; warranting.



early 13c., "protector, defender," from Old North French warant (Old French garant), from Frankish *warand (cf. Old High German weren "to authorize, warrant," German gewähren "to grant"), from Proto-Germanic *war- "to warn, guard, protect," perhaps from PIE root *wer- "to cover" (cf. Latin vereri "to observe with awe, revere, respect, fear;" Greek ouros "watchman," horan "to see;" Hittite werite- "to see;" see weir).

Sense evolved via notion of "permission from a superior which protects one from blame or responsibility" (c.1300) to "document conveying authority" (1510s). A warrant officer in the military is one who holds office by warrant, rather than by commission.

Online Etymology Dictionary, © 2010 Douglas Harper
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Idioms and Phrases with warranting
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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