guarantor

noun

guar·​an·​tor ˌger-ən-ˈtȯr 

ˌgär-,

ˌga-rən-;

ˈger-ən-tər,

ˈgär-,

ˈga-rən- 

1

: one that gives a guaranty (see guarantee entry 1 sense 3)

2

: one that guarantees

Synonyms

• sponsor
• patron

Examples of guarantor in a Sentence

the town police force is the guarantor of our safety

Recent Examples on the Web

In some situations, the failure of the lender to timely advise the guarantor that the borrower has defaulted will result in the guarantor being discharged from the guarantee. —Jay Adkisson, Forbes.com, 9 July 2025

Under Trump, the United States continues to serve as Israel’s security guarantor and diplomatic shield. —Aluf Benn, Foreign Affairs, 5 June 2025

European allies and other friendly states would act as Ukraine's security guarantors, according to the document seen by Reuters. —Thomas G. Moukawsher, MSNBC Newsweek, 25 Apr. 2025

But these weapons have little tactical relevance to the war in Ukraine and instead challenge Western deterrence and defense in the future when the U.S. no longer wants to be Europe's main security guarantor, the KSE report said. —Brendan Cole, MSNBC Newsweek, 25 June 2025

Word History

Etymology

see guaranty entry 1

First Known Use

circa 1828, in the meaning defined at sense 1

Rhymes for guarantor

• albacore
• alongshore
• antiwar
• anymore
• blastopore
• carnivore
• commodore
• dinosaur
• evermore
• furthermore
• herbivore
• heretofore

Kids Definition

guarantor

noun

guar·​an·​tor ˌgar-ən-ˈtȯ(ə)r  ˈgar-ən-tər 

ˌgär-,

ˈgär-

: one that gives a guarantee

Legal Definition

guarantor

noun

guar·​an·​tor ˌgar-ən-ˈtȯr, ˌgär-; ˈgar-ən-tər, ˈgär- 

: one that makes or gives a guaranty