POW camp
bastille
beleaguer
beset
besiege
black hole
blockade
bolt in
borstal
borstal institution
bound
box in
bridewell
brig
cage
cast in prison
cell
chamber
clap in jail
clap up
close in
compass
concentration camp
condemned cell
contain
coop
coop in
coop up
cordon
cordon off
corral
death cell
death house
death row
detention camp
encircle
enclose
encompass
enshrine
federal prison
fence in
forced-labor camp
guardhouse
hedge in
hem in
hold captive
hold in captivity
hold prisoner
house in
house of correction
jail
confine
detain
almshouse
asylum
dungeon
gallows
gibbet
infirmary
madhouse
penitentiary
workhouse