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

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

In a speech in 2014, Chinese President Xi Jinping signaled his displeasure with the United States playing the role of security guarantor. —David Santoro, Foreign Affairs, 22 May 2025

The nine-story building has a part-time doorman, a somewhat reasonable maintenance of $1,771 a month, and allows pieds-à-terre, pets, guarantors, and subletting. —Kim Velsey, Curbed, 13 May 2025

At its core, accreditation is a guarantor of quality in higher education. —Jimmy Aguilar, The Conversation, 8 May 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