A place or institution of confinement, especially of long-term confinement for those convicted of serious crimes or otherwise considered undesirable by the government.
The cold stone walls of the prison had stood for over a century.
Confinement in prison.
Prison was a harrowing experience for him.
Any restrictive environment, such as a harsh academy or home.
The academy was a prison for many of its students because of its strict teachers.
To imprison.