guarantor

noun

guar·​an·​tor ˌger-ən-ˈtȯr 

ˌgär-, 

ˌga-rən-;

ˈger-ən-tər, 

ˈgär-, 

ˈga-rən- 

1

: one that promises to answer for the payment of a debt or performance of a duty in case of the other's default or failure to perform : one that gives a guaranty (see guarantee entry 1 sense 3)

2

: one that guarantees

Synonyms of guarantor

• sponsor
• patron

Examples of guarantor in a Sentence

the town police force is the guarantor of our safety

Recent Examples on the Web

This crisis comes as the United States casts doubt on its role as Europe’s security and strategic guarantor, a malign and militarized Russia presents a growing existential threat, and Europe’s inability to harness its collective economic resources undermines its collective defense. —Douglas Rediker, Foreign Affairs, 17 Dec. 2025

Vladimir Padrino López Vladimir Padrino López, Venezuela’s long-serving defense minister, is portrayed by La Nación as the backbone of the military establishment and the guarantor of Maduro’s survival. —Efrat Lachter, FOXNews.com, 13 Dec. 2025

Paragon Site Solutions is listed as the guarantor of the state incentive. —Chase Jordan, Charlotte Observer, 19 Nov. 2025

What Happens Next Under the resolution, Israeli forces are expected to gradually withdraw from Gaza as stability improves, following standards and timelines tied to demilitarization and agreed upon by Israel, the stabilization force, the United States and other ceasefire guarantors. —Shane Croucher, MSNBC Newsweek, 18 Nov. 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