sure·ty 
/ˈʃɚrəti, Brit ˈʃɔ:rəti/ noun
plural sure·ties /ˈʃɚrəti, Brit ˈʃɔ:rəti/ noun 1 [count] law : money that you give as a guarantee that you will do what you are legally required to do (such as to appear in court)
▪ a surety of $10,000 = a $10,000 surety bond 2 law : someone who agrees to be legally responsible if another person fails to pay a debt or to perform a duty [count] ▪ As sureties, they will be liable in his place. [noncount] ▪ She will stand surety for him. [=she agrees to be legally responsible if he fails to do what he promised] 3 [noncount] formal : the state of being or feeling sure or certain
▪ She answered with surety. [=certainty]
▪ a surety of $10,000 = a $10,000 surety bond
▪ She answered with surety. [=certainty]
