warden. 1. A person in charge of something <game warden> <port warden>; esp., the official in charge of a prison, jail, or park <prison warden> <game warden>. [Cases: Prisons  6–12. C.J.S. Prisons and       Rights   of         Prisoners           §§         6,         14–20, 25,        50–53, 55,        59,        124–129.]

2.SERGEANT-AT-ARMS(4).
[Blacks Law 8th]