Borstal is a noun that refers to an institution for youthful offenders.

Our word of the day comes from the name of a village in southern England, where the first institution for youthful offenders was built. Today it is used in reference to any such institution.

Tommy’s behavior got so out-of-control he had to be sent to the borstal. He didn’t enjoy spending years in the institution, but his behavior did calm down.