solitary confinement
Legal term for solitary confinement, used in prison contexts.
The prisoner was placed in solitary confinement.
solitary confinement in a dark cell without bedding (up to one week)
The term is composed of 屏 (へい, 'shield, screen') and 禁 (きん, 'prohibition, ban'), suggesting confinement behind a barrier. The exact historical derivation is uncertain.