(n.) The state of being sure; certainty; security.
(n.) That which makes sure; that which confirms; ground of confidence or security.
(n.) Security against loss or damage; security for payment, or for the performance of some act.
(n.) 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.