The term PRISON CHIEF can be summarized as a WARDEN, which is a six-letter word. A WARDEN is the head of a prison or jail, responsible for the safety and security of inmates and staff. They are also responsible for the overall management of the facility, including budgeting, staffing, and policy implementation. The WARDEN is the highest-ranking official in the prison and is ultimately responsible for the well-being of all those within the facility.