solitary confinement cell; isolation cell
Abbreviation of 独居監房. Refers to a prison cell designed for one person, typically used for isolation or punishment.
See also: 独居監房
He was put in solitary confinement for breaking the rules.
Life in an isolation cell is mentally harsh.
The inmate who caused trouble was put into solitary confinement.
He spent a week in a solitary cell.