POW camp
black hole
borstal
borstal institution
bridewell
brig
bucket
caboose
calaboose
can
cell
chokey
concentration camp
condemned cell
confine
constrain
death cell
death house
death row
detention camp
federal prison
forced-labor camp
gaol
guardhouse
hoosegow
house of correction
house of detention
immure
incarcerate
industrial school
intern
internment camp
jail
jailhouse
jug
keep
labor camp
lockup
maximum-security prison
minimum-security prison
oubliette
pen
penal colony
penal institution
penal settlement
penitentiary
prison
prison camp
prisonhouse
quod
Belleville
Bill
Brazil
Brill
Gil
Gill
Hill
Jill
Lil
Lille
Mill
Mille
Phil
Seville
Sill
Still
Tamil
Will
bil
bill
brazil
brill
chill
dill
distil
distill
downhill
drill
fil
fill
fril
frill
fulfill
gill
goodwill
grill
grille
hill
il
ill
instill
jill
kill
knill
krill
lil
lill
mil
mill
nil