Noun: warrantor 'wor-un-tur or 'wor-un,tor [N. Amer], 'wó-run,tor or ,wó-run'tor [Brit]- One who provides a warrant or guarantee to another
"Her father acted as warrantor for her first apartment lease";
- guarantor, surety, warranter
Derived forms: warrantors
Type of: patron, sponsor, supporter