Prisoner

Part of speech: noun (n.)

1. One who is confined in a prison. Piers Plowman.

2. A person under arrest, or in custody, whether in prison or not; a person held in involuntary restraint; a captive; as, a prisoner at the bar of a court. Bouvier. Prisoner of Hope thou art, -- look up and sing. Keble. Prisoner's base. See Base, n., 24.