/yʌŋ əˈfɛndər ˌɪnstɪˈtjuːʃən/ – Phrase
Definition: Trường cải tạo thanh thiếu niên.
A more thorough explanation: a type of detention centre in the UK where criminals aged 14-20 are sent as punishment for crimes usually punishable by a prison sentence
Example: He sentenced the teenager to 10 years in a young offender institution.