the state of being sure; certainty; security.-that which makes sure; that which confirms; ground of confidence or security.-security against loss or damage; security for payment, or for the performance of some act.-one who is bound with and for another who is primarily liable, and who is called the principal; one who engages to answer for another's appearance in court, or for his payment of a debt, or for performance of some act; a bondsman; a bail.-hence, a substitute; a hostage.-evidence; confirmation; warrant.-to act as surety for.