POW camp
bastille
black hole
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
reform school
reformatory
remand school
sponging house
state prison
stockade
the hole
tollbooth
training school