/ Dictionary / Index G guarantor: Meaning and Definition of Find definitions for: guar•an•tor Pronunciation: (gar'un-tôr", -tur), [key] — n. a person, group, system, etc., that guarantees. a person who makes or gives a guarantee, guaranty, warrant, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: guarantor (Thesaurus) guaranteed stock guaranty Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language