Prisoner/ˈprɪznər/ Definition 1 of 4Pro Tip 1/3Legal Outcome ‘Prisoner’ implies that the person has faced legal judgment and is serving time. The court declared her a prisoner after the verdict. Pro Tip 2/3Length of Stay The term does not specify the length of imprisonment; it could be days or life. As a prisoner, his fate was uncertain. Pro Tip 3/3Not Always Physical Can refer to being controlled by emotions or situations, not just physically held. He's a prisoner to his own fears.