inmate
noun
[ ˈɪnmeɪt ]
• a person confined to an institution such as a prison or hospital.
• "inmates of the Louisiana State Penitentiary"
Similar:
patient,
inpatient,
hospital case,
convalescent,
resident,
inhabitant,
occupant,
prisoner,
convict,
captive,
detainee,
internee,
jailbird,
con,
lag,
yardbird,
Origin:
late 16th century (denoting a person who shared a house, specifically a lodger or subtenant): probably originally from inn + mate1, later associated with in.