Synonyms of guarantor

guarantor

noun

ˌger-ən-ˈtȯr 

as in sponsor

a person who takes the responsibility for some other person or thing

the town police force is the guarantor of our safety

Synonyms & Similar Words

• sponsor
• patron
• supporter
• surety
• benefactor
• advocate
• teacher
• backer
• underwriter
• mentor
• coach
• champion
• chaperone
• cosigner
• cosponsor
• angel
• cosignatory

Example Sentences

Recent Examples of guarantor

Europe’s defense sovereignty push, spurred by Washington’s retreat as the continent’s security guarantor, has hit several hurdles in recent months, including the demise of a joint German-French fighter jet project. — J.d. Capelouto, semafor.com, 15 July 2026

Until the 1970s, women needed a male guarantor, often a husband, to buy homes and get credit cards. — Kamaron McNair, CNBC, 2 July 2026

Neighbors digging with their hands is usually the true image of first responders, yet the longer that image lasts the more evident the State’s failure is in fulfilling its duties as guarantors of life and public safety. — Luis E. Romero, Forbes.com, 27 June 2026

While no regional power is currently capable of replacing the US as the Gulf’s security guarantor, officials are increasingly contemplating a future in which Washington plays a much smaller role in the regional security architecture, the diplomat said. — Nic Robertson, CNN Money, 24 June 2026