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).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.