guar·​an·​tee | \ ˌger-ən-ˈtē How to pronounce guarantee (audio) , ˌgär-, ˌga-rən- also ˈger-ən-ˌtē or ˈgär-ən- How to pronounce guarantee (audio) , ˈga-rən- How to pronounce guarantee (audio) \

Definition of guarantee

 (Entry 1 of 2)

1 : guarantor
3 : an assurance for the fulfillment of a condition: such as
a : an agreement by which one person undertakes to secure another in the possession or enjoyment of something
b : an assurance of the quality of or of the length of use to be expected from a product offered for sale often with a promise of reimbursement The washer comes with a guarantee against major defects.


guaranteed; guaranteeing

Definition of guarantee (Entry 2 of 2)

transitive verb

1 : to undertake to answer for the debt, default, or miscarriage of guarantee a loan
2 : to engage for the existence, permanence, or nature of : undertake to do or secure guarantee the winning of three tricks
3 : to give security to guaranteed her against loss
4 : to assert confidently I guarantee you'll like it

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Synonyms for guarantee

Synonyms: Noun

Synonyms: Verb

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Examples of guarantee in a Sentence

Noun And as key pieces of the infrastructure are knocked out, there is no guarantee that they will be repaired or rebuilt, at least not as they were before. — Naomi Klein, Harper's, October 2007 It might be no bad thing if the Constitution's guarantee of "equal protection of the laws" was interpreted to outlaw the vagaries of voting … — Michael Kinsley, New York Times Book Review, 5 Nov. 2006 Collecting can be a sort of love-sickness. If you begin collecting living things,  … even if you manage to find them and then possess them, there is no guarantee they won't die or change. — Susan Orlean, New Yorker, 23 Jan. 1995 The washer comes with a guarantee against major defects. They wanted a guarantee that the document was authentic. They want the new contract to include a guarantee of job security. The U.S. Constitution includes guarantees against unreasonable searches. He cited the First Amendment guarantee of free speech. Verb They're called change agents. They swoop in to transform stodgy institutions …  . It's a risky tack, one that guarantees large numbers of people will hate the boss's guts. — Daniel McGinn, Newsweek, 28 Feb. 2005 For an incumbent President …  . The power of the office and the media coverage its holder is guaranteed for just doing his job generally give him the luxury of staying above the fray. — Joe Klein, Time, 22 Mar. 2004 Voucher plans were adopted largely as a last resort, an effort to guarantee a semblance of school choice for low-income minority students in failing inner-city schools. — Jeffrey Rosen, New Republic, 18 Mar. 2002 The washer is guaranteed against defects for one year. They guarantee that the diamonds they sell are top quality. He offered to personally guarantee the loan. The investment was guaranteed by the bank. I guarantee that you'll be satisfied. He guaranteed us that everything would go according to plan. Money doesn't guarantee a happy life. He guaranteed a victory in the championship game.
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Recent Examples on the Web: Noun The process can take years, with no guarantee of a successful outcome. Rishi Iyengar, CNN, 8 July 2021 With no guarantee that the team will be able to acquire a second all-star this offseason, Billups could be the team’s biggest acquisition before next season begins in October. oregonlive, 2 July 2021 Now, with no guarantee the Seawolves will ever play again, Curley — who has repeatedly professed his affection for Anchorage and Alaska — is leaving. Beth Bragg, Anchorage Daily News, 15 June 2021 Carp arrived with no guarantee of playing time but appeared in 86 games during that magic season., 12 June 2021 The Invincibowl is made from aerospace-grade aluminum, fits all 14mm joint bongs, and comes with a lifetime guarantee. A.j. Herrington, Forbes, 11 June 2021 Eventually, Oxford sold the sole right of production to AstraZeneca, with no guarantee of low prices and an extraordinary opportunity for profit. Mohit Mookim, Wired, 19 May 2021 But lead prosecutor John Lewin debunked the claims, saying Durst is receiving proper medical care behind bars — with no guarantee, his health would improve if the trial were delayed for several months. Fox News, 18 May 2021 Recruitment of people to recount the ballots has extended into right-wing circles with no guarantee those doing the recount are bipartisan. Carrie Watters, The Arizona Republic, 13 May 2021 Recent Examples on the Web: Verb In Sacramento, officials are considering a measure that would guarantee housing for every homeless person but would also require homeless people to accept housing when it is offered. New York Times, 13 July 2021 Those lines that can guarantee sailing with at least 98% crew and 95% passengers vaccinated have been given the OK to sail without a test sailing. Richard Tribou,, 6 July 2021 For researchers, the pilot could give them a fuller picture of what happens when a range of people are sent payments that guarantee a basic living. Michael Hill, The Christian Science Monitor, 24 June 2021 Leaders of Northrim Bank, one of the state’s largest financial institutions, urged approval of the effective date clause but also asked lawmakers to reject proposals that would constitutionally guarantee a Permanent Fund dividend. James Brooks, Anchorage Daily News, 24 June 2021 The party might also note that 54% of those polled by Quinnipiac supported stricter gun control and, according to ABC News, 50% prioritized reducing gun violence over laws that guarantee their right to guns. Julian Zelizer, CNN, 23 June 2021 In a surprising piece of breaking news, Steven Spielberg’s Amblin Partners has partnered with streaming giant Netflix in a new deal that will guarantee multiple exclusive new films per year to the service. Jeff Ewing, Forbes, 21 June 2021 The United States is one of just two countries along with Papua New Guinea that does not guarantee paid parental leave to men or women. CBS News, 18 June 2021 The Miami Dolphins locked up one of the team’s top defenders, giving Jerome Baker a three-year extension that will guarantee the team’s leading tackler $28 million. Omar Kelly,, 13 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'guarantee.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of guarantee


1680, in the meaning defined at sense 1


1731, in the meaning defined at sense 1

History and Etymology for guarantee

Noun and Verb

probably alteration of guaranty entry 1

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Time Traveler for guarantee

Time Traveler

The first known use of guarantee was in 1680

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Dictionary Entries Near guarantee




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Statistics for guarantee

Last Updated

31 Jul 2021

Cite this Entry

“Guarantee.” Dictionary, Merriam-Webster, Accessed 5 Aug. 2021.

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More Definitions for guarantee



English Language Learners Definition of guarantee

 (Entry 1 of 2)

: a promise that the quality of something (such as a product that is being sold) will be as good as expected
: a promise that something is true or real
: a promise that something will happen or be done



English Language Learners Definition of guarantee (Entry 2 of 2)

: to make a usually written promise that whatever you are selling, doing, etc., is what you say it is
: to promise to pay for (something) if another person fails to pay for it
: to say (something) with great confidence


guar·​an·​tee | \ ˌger-ən-ˈtē How to pronounce guarantee (audio) , ˌgär- \

Kids Definition of guarantee

 (Entry 1 of 2)

1 : a promise that something will be or will happen as stated a guarantee against defects
2 : something given as a promise of payment : security


guaranteed; guaranteeing

Kids Definition of guarantee (Entry 2 of 2)

1 : to make a promise about the condition or occurrence of something guarantee a car
2 : to promise to be responsible for the debt or duty of another person I'll guarantee his loan.


guar·​an·​tee | \ ˌgar-ən-ˈtē, ˌgär- How to pronounce guarantee (audio) \

Legal Definition of guarantee

1 : guarantor
3 : an assurance that a condition will be fulfilled: as
a : an agreement by which one person undertakes to secure another in the possession or enjoyment of something
b : an assurance of the quality or of the length of use to be expected from a product offered for sale often with a promise of reimbursement
4 : guaranty sense 4, 5 constitutional guarantees

Other Words from guarantee

guarantee transitive verb

History and Etymology for guarantee

probably alteration of guaranty

More from Merriam-Webster on guarantee

Nglish: Translation of guarantee for Spanish Speakers

Britannica English: Translation of guarantee for Arabic Speakers Encyclopedia article about guarantee


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