A hostage is a person seized by a criminal abductor in order to compel another party such as a relative, employer, law enforcement or government to act, or refrain from acting, in a certain way, often under threat of serious physical harm to the hostage(s) after expiration of an ultimatum. The 1911 edition of the Encyclopædia Britannica defines a hostage as "a person who is handed over by one of two belligerent parties to the other or seized as security for the carrying out of an agreement, or as a preventive measure against certain acts of war."
