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 The ruling recognized the Sixth Amendment’s guarantee of a right to counsel and the Fourteenth Amendment’s provision that the government can’t deprive someone of life, liberty, or property without due process. Kathryn Joyce, The New Republic, "No Money, No Lawyer, No Justice," 22 June 2020 No season, no guarantee of at least $1.2 billion in salaries. Bob Nightengale, USA TODAY, "Opinion: Things look bleak, but here's why there will be a Major League Baseball season," 17 June 2020 The tycoon, who had offered personal guarantee on the bank’s loans to his Reliance Communications Ltd. and Reliance Infratel Ltd., was given a week to reply on Thursday, according to the Press Trust of India. Upmanyu Trivedi,, "State Bank of India Seeks $158 Million From Anil Ambani," 14 June 2020 The bottom line: The Cowboys current offer gives Prescott the league’s top guarantee and the second-highest average. David Moore, Dallas News, "Big-money NFL deals are hard, and that fact has kept Cowboys QB Dak Prescott in negotiation limbo," 30 May 2020 For teachers, there is no guarantee the district will honor their choice. Hannah Natanson, Washington Post, "Fairfax teachers, parents face a wrenching choice about fall. Betsy DeVos made it political.," 12 July 2020 Even as the Mavericks completed the fourth of their five mandatory individual workouts in Dallas, closures of other teams’ facilities show the resumption is no guarantee. Callie Caplan, Dallas News, "Who is Mavs’ 3rd option? Tim Hardaway Jr. isn’t interested in debate as NBA attempts restart amid pandemic and protests," 6 July 2020 There's no guarantee that a deal will reappear, but in many cases, a deal will reappear every so often. Karina Hoshikawa,, "Amazon’s Choice Robot Vacuum Is On Sale Today For 30% Off," 5 July 2020 But the companies' answers were somewhat vague, and there's no guarantee that customers who still can't pay will keep their service throughout the pandemic, which isn't ending any time soon. Jon Brodkin, Ars Technica, "Comcast’s data cap and overage fees return tomorrow after 3-month break," 30 June 2020 Recent Examples on the Web: Verb To guarantee no air escapes during cooking, the chef suggests forming... Kitty Greenwald, WSJ, "A Fail-Proof Method for Cooking Fish Deliciously," 9 July 2020 When Georgia lawmakers voted in 2001 to change the state flag that had been dominated by the Confederate battle emblem since 1956, language to guarantee the preservation of the Stone Mountain sculpture was included as a bargaining chip. Russ Bynum,, "As monuments fall, Confederate mountain carving has size on its side," 4 July 2020 Mitsotakis said the development would lead to the creation of 80,000 jobs and the project would be environmentally friendly and guarantee access for all residents of the wider Athens region. Washington Post, "Greece: Construction begins on major development project," 3 July 2020 But the extraordinary steps to help the A$38 billion ($26 billion) export industry recover from the coronavirus lockdown may not be enough to guarantee its long-term future. Fortune, "Australia keeps its borders closed—except for one group," 2 July 2020 Customers will be able to buy a $20 monthly membership to guarantee a spot any day of the week, Mariah said. Bob Dohr, Milwaukee Journal Sentinel, "MKE Doghouse, a new dog day care and dog boarding business, is coming to Greenfield," 30 June 2020 That was made clear during the court battles involving net neutrality, when the Federal Communications Commission, under the Obama administration, tried to guarantee that the major internet providers could not favor certain services. Steven Levy, Wired, "What Apple’s Silicon Chips Suggest About Its Future," 26 June 2020 Some patients have been retreating to their cars to guarantee them peace and quiet, says Blumenthal. 1843, "The virtual couch," 26 June 2020 Sixty games after a hurried spring training – barely one-third the usual schedule – will far from guarantee the best teams make the playoffs, let alone win the World Series. Gabe Lacques, USA TODAY, "MLB 2020: When, where and how? Answering your burning questions for the (possible) season," 23 June 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

30 Jul 2020

Cite this Entry

“Guarantee.” Dictionary, Merriam-Webster, Accessed 11 Aug. 2020.

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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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