GUARANTOR Meaning of GUARANTOR in English guar ‧ an ‧ tor /ˌɡærənˈtɔː $ -ˈtɔːr/ BrE AmE noun [countable] law someone who promises to pay a debt if the person who should pay it does not Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012