Inmate (noun)

1. A person confined to an institution such as a prison or mental hospital.
2. A person residing in a particular place, especially as a member of a religious community.

Origin:

Late 16th century, from french, from latin in- + mans, manis a dwelling, mansion.

Examples:

1. The inmates were not allowed to leave the prison without escort.
2. Many of the inmates at the mental hospital suffered from severe depression.
3. The new inmate was assigned to a cell in the maximum security section.
4. The nuns lived as inmates in the convent.
5. The inmate population at the prison has increased significantly in recent years.