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)

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 That’s good news, but no guarantee that NAIAS will take place in 2022, or that any auto show will ever match the big-budget extravaganzas that have led automakers’ marketing efforts for a century. Mark Phelan, Detroit Free Press, "Automakers assure Mayor Duggan: Auto show won't ditch Detroit for good," 13 Jan. 2021 Randle has a partial guarantee for next season, when he is scheduled to make an affordable $19.8 million. Joe Freeman, oregonlive, "CJ McCollum’s rise, Kyrie Irving’s vanishing act, coronavirus spread, Patty Mills’ goodwill, most under-appreciated players: NBA news and notes," 12 Jan. 2021 But that’s a 70-year average and chances for a plus return, not a guarantee for every year. Rich Exner, cleveland, "Will the historic Santa Claus Rally repeat in 2020-21 with holiday stock gains? - That’s Rich! recap," 27 Dec. 2020 Of course, there’s no guarantee of success for any of these electric-truck makers. New York Times, "A Race to Become the Tesla of Delivery Trucks and Vans," 22 Dec. 2020 Nunn had a $300,000 guarantee on opening night, with the remainder to have been guaranteed at midseason. Ira Winderman,, "Miami Heat fully guarantee contracts of Duncan Robinson, Kendrick Nunn," 17 Nov. 2020 In the case of the Nov. 10 season-opening game vs. Utah Valley, which had an $80,000 guarantee attached to it, the Utes and Wolverines renegotiated to play on Dec. 15 for $40,000. Josh Newman, The Salt Lake Tribune, "Utah taking Fresno State to court over canceled men’s basketball game," 13 Nov. 2020 But there's no guarantee, especially without a bubble. Tim Dahlberg, Star Tribune, "Column: Half a season and a Super Bowl ahead for NFL," 12 Nov. 2020 He was named the interim coach after Jay Hopson resigned on Sept. 7 and had no guarantee of getting the job on a permanent basis. Dan Wolken, USA TODAY, "Opinion: Michigan loss to Michigan State is worst and most surprising of Jim Harbaugh era," 1 Nov. 2020 Recent Examples on the Web: Verb Unfortunately, their arrival doesn’t guarantee your survival. Cody Cassidy, Wired, "The Case for Cannibalism, or: How to Survive the Donner Party," 13 Jan. 2021 No agent can guarantee how quickly a house will sell, but an analysis of comparable homes in the neighborhood should give a good indication. Dallas News, "Here’s what to ask when selling your home," 10 Jan. 2021 More expensive disposable face masks don’t guarantee better protection. Lauren Levy, NBC News, "How to buy the best disposable face mask, according to experts," 5 Jan. 2021 The Small Business Administration will guarantee 90% of the new loans, up from 75%. Andy Peters, ajc, "Business owners hope to buy time with new COVID relief loans," 2 Jan. 2021 Unlike student loans or mortgages, the federal government’s COVID relief act passed in March does not guarantee auto loans. David Lyons,, "Repo men face a big year in 2021 as car payments go overdue," 21 Dec. 2020 The measure doesn’t guarantee the money, which lawmakers will need to provide in annual spending bills. John Flesher,, "Congress OKs 5-year extension of Great Lakes cleanup program," 21 Dec. 2020 Air UPS is closed on Christmas Day, so any of the above options will guarantee delivery of most packages by December 24. Micolette Davis, Chron, "There's still time to ship your packages for Christmas," 21 Dec. 2020 Norton said vendors and contractors can’t guarantee projects would be done by Dec. 30. Special To The Oregonian/oregonlive, oregonlive, "Oregon tribes on edge over uncertainty about COVID-19 relief funds," 13 Dec. 2020

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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Statistics for guarantee

Last Updated

20 Jan 2021

Cite this Entry

“Guarantee.” Dictionary, Merriam-Webster, Accessed 22 Jan. 2021.

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More Definitions for guarantee


How to pronounce guarantee (audio) How to pronounce guarantee (audio) How to pronounce guarantee (audio)

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

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

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Comments on guarantee

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