Prīz'on-er, n.

(priz'n-er), n. [Fr. prisonnier, Pr. preisionier, prezonier, presoner, Sp. prisionero, Pg. prisioneiro, It. prigioniere.]

1. One who is confined in a prison.
2. A person under arrest or in custody, whether in prison or not; one held in confinement against his will; a captive; as, a prisoner at the bar of a court.

Bouvier.