parole

early freedom from prison that a prisoner keeps only by following set rules

Originally, one's oath or word of honour, given as a condition of release from custody; now specifically, describing the release of a former prisoner under certain conditions, especially the promise of good behaviour.

(US) The permission for a foreigner who does not meet the technical requirements for a visa to be allowed to enter the U.S. on humanitarian grounds.

(historical) A word of honor, especially given by a prisoner of war, to not engage in combat if released.

Language in use, as opposed to language as a system.

(no longer used) A watchword or code phrase; (military) a password given only to officers, distinguished from the countersign, which is given to all guards.

To release (a prisoner) on the understanding that s/he checks in regularly and obeys the law.

To be released on parole.