• synonyms


[gar-uh n-tawr, -ter]
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  1. a person, group, system, etc., that guarantees.
  2. a person who makes or gives a guarantee, guaranty, warrant, etc.
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Origin of guarantor

First recorded in 1850–55; guarant(ee) + -or2
Related formspre·guar·an·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for guarantor

underwriter, backer, sponsor, patron, bondsman, bailsman

Examples from the Web for guarantor

Contemporary Examples of guarantor

Historical Examples of guarantor

British Dictionary definitions for guarantor


  1. a person who gives or is bound by a guarantee or guaranty; surety
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for guarantor


1853, from guarantee with Latinate agent noun suffix -or substituted for -ee.

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Online Etymology Dictionary, © 2010 Douglas Harper