Security, such as cash, a bond, or property, pledged or given to a court by or on behalf of one accused of committing a crime, to obtain release from incarceration and to ensure the person’s future appearance in court when required during the criminal proceeding. See also preventive detention and recognizance. 2 v. To obtain for oneself or another the release from incarceration by providing security to ensure the person’s future appearance at every stage in a criminal proceeding. 3 v. To temporarily give possession of personal property to someone. See also bailment.