A person held in custody, captivity, or a condition of forcible restraint, especially while on trial or serving a prison sentence.
One deprived of freedom of expression or action: "He was a prisoner of his own personality—of that given set of traits that . . . predisposed him to see the world in a certain way, to make certain moves, certain choices"(William H. Hallahan).
Main Entry: pris·on·er Function: noun : a person deprived of liberty and kept under involuntary restraint, confinement, or custody; especially: one under arrest, awaiting trial, on trial, or serving a prison sentence