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

The bill defines a brand guarantor broadly as anyone contracting for garment manufacturing, including through a brand or name-licensing arrangement. — Alexandra Harrell, Footwear News, 15 Sep. 2026

At first, it was intended to be a temporary measure; yet the collapse of Venice’s maritime trade—once the guarantor of its prosperity—demanded that the Ghetto not only be retained but expanded. — Literary Hub, 8 Sep. 2026

Summers posted surety, meaning that his release was secured by a third-party guarantor. — Rachel Roberts, Idaho Statesman, 3 Sep. 2026

The conflict has also begun to divide the Gulf from the United States, its main security guarantor. — Dina Esfandiary, Foreign Affairs, 27 Aug. 2026

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
• carnivore
• commodore
• dinosaur
• evermore
• furthermore
• herbivore
• heretofore
• matador

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