say it: ger-uhn-TEE
guaranty is a noun meaning "a collateral agreement to answer for the debt of another in case that person defaults". It carries one recorded sense.
a collateral agreement to answer for the debt of another in case that person defaults
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for guaranty come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.