/ˈfɛloʊ ˈprɪzənər/ – Phrase
Definition: bạn tù, đồng bị cáo bị giam giữ.
A more thorough explanation: A “fellow prisoner” refers to an individual who is incarcerated or detained in the same facility or institution as another person.
Example: The defendant shared a cell with his fellow prisoner during their time in custody.