guarantor
Americannoun
-
a person, group, system, etc., that guarantees.
-
a person who makes or gives a guarantee, guaranty, warrant, etc.
noun
Other Word Forms
- preguarantor noun
Etymology
Origin of guarantor
First recorded in 1850–55; guarant(ee) + -or 2
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
South Carolina does not have filial-responsibility laws, and Maryland repealed its own law in 2017, meaning adult children are not responsible for their parents’ debts or care-home costs, unless they sign as a guarantor.
From MarketWatch • Feb. 25, 2026
They now see the need to lay the groundwork for the day when it might no longer be a reliable guarantor of their security.
From Slate • Feb. 2, 2026
He has promised to tackle corruption and impose sweeping reforms, while Museveni argues he is the sole guarantor of stability and progress in Uganda.
From BBC • Jan. 17, 2026
Seoul has for decades trodden a fine line between China, its top trading partner, and the United States, its chief defence guarantor.
From Barron's • Jan. 4, 2026
Jack, the household’s protector, its guarantor of tranquillity, was relied on to take the long view.
From "Atonement" by Ian McEwan
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.