guarantee
verb
guaranteed; guaranteeing; guarantees
1
: to promise 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.
Examples of guarantee in a Sentence
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.
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.
Recent Examples on the Web
The suspension was imposed by the International Ice Hockey Federation, which has repeatedly extended it, citing security concerns and the inability to guarantee safe participation in international events.
—Jon Root Outkick, FOXNews.com, 7 June 2026
Aliens on the loose, serial killer investigations, family conspiracies, abusive cults, and robots gone rogue are just a few scenarios guaranteed to grab your attention and spike your blood pressure…and they all can be found on the list below.
—Kevin Jacobsen, Entertainment Weekly, 6 June 2026
Watts' addition in Detroit was particularly notable in landing what's called an Expansion Foundational Offer, guaranteeing her an annual salary of no less than $100,000.
—CBS News, 6 June 2026
These coatings are typically lifetime-guaranteed to prevent stains from penetrating the porous surface, which can give you extra peace of mind.
—Daley Quinn, Southern Living, 6 June 2026
See All Example Sentences for guarantee
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jon Root Outkick, FOXNews.com, 7 June 2026
Aliens on the loose, serial killer investigations, family conspiracies, abusive cults, and robots gone rogue are just a few scenarios guaranteed to grab your attention and spike your blood pressure…and they all can be found on the list below.
—Kevin Jacobsen, Entertainment Weekly, 6 June 2026
Watts' addition in Detroit was particularly notable in landing what's called an Expansion Foundational Offer, guaranteeing her an annual salary of no less than $100,000.
—CBS News, 6 June 2026
These coatings are typically lifetime-guaranteed to prevent stains from penetrating the porous surface, which can give you extra peace of mind.
—Daley Quinn, Southern Living, 6 June 2026
See All Example Sentences for guarantee
Cite this Entry
“Guarantee.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guarantee. Accessed 9 Jun. 2026.
Copy CitationKids Definition
guarantee
1 of 2 noun
guar·an·tee
ˌgar-ən-ˈtē 
ˌgär-
guarantee
2 of 2 verb
guaranteed; guaranteeing
1
: to promise to answer for the debt, failure to perform, or faulty performance of another
2
: to promise that some condition holds or will be fulfilled
guarantee a car against defects for one year
guaranteed annual wage
3
: to give security : secure
Legal Definition
guarantee
noun
guar·an·tee
ˌgar-ən-ˈtē, ˌgär-
1
2
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
guarantee
transitive verb
Etymology
probably alteration of guaranty
Love words? Need even more definitions?
Merriam-Webster unabridged
