guar·an·ty 
/ˈgerənti/ noun
plural guar·an·ties /ˈgerənti/ noun [count] 1 law : a formal promise to pay a debt
▪ a loan guaranty [=guarantee] — often used in the names of financial companies ▪ He worked for the Morgan Guaranty Trust Company. 2 : something that protects or maintains the existence of something else
▪ the guaranty [=guarantee] of free speech
▪ a loan guaranty [=guarantee] — often used in the names of financial companies ▪ He worked for the Morgan Guaranty Trust Company.
▪ the guaranty [=guarantee] of free speech
