Synonyms and related words :
POW camp, bastille, black hole, borstal, borstal institution, borstal school, bridewell, brig, cell, concentration camp, condemned cell, death cell, death house, death row, detention camp, federal prison, forced-labor camp, gaol, guardhouse, house of correction, house of detention, industrial school, internment camp, jail, jailhouse, keep, labor camp, lockup, maximum-security prison, minimum-security prison, oubliette, pen, penal colony, penal institution, penal settlement, penitentiary, prison, prison camp, prisonhouse, reformatory, remand school, sponging house, state prison, stockade, the hole, tollbooth, training school