/tɒp sɪˈkjʊərɪti ˈprɪzən/ – Phrase
Definition: Nhà tù an ninh cao cấp.
A more throughout explanation: a very high security prison where criminals who are dangerous, who have committed certain crimes, who are a security risk, or may try to escape are kept. In some jurisdictions, prisoners kept in top security prisons are called category A prisoners.
Example: The European Court blocked Mr Aswat’s extradition to the US, saying his likely detention in a top security prison could cause his mental health to suffer.