Gaolbird
Part of speech: noun
Definition: A prisoner or an ex-prisoner
Inmate
Part of speech: noun
Definition: A person confined to an institution such as a prison (as a convict) or hospital (as a patient)A person who occupies or dwells within a dwelling-house. The word came to be used to refer to temporary inhabitants such as guests in a hotel, students in an on-campus dormitory, patients in a hospital, or prisoners.