Noun

• S: (n) captivity, imprisonment, incarceration, immurement (the state of being imprisoned) "he was held in captivity until he died"; "the imprisonment of captured soldiers"; "his ignominious incarceration in the local jail"; "he practiced the immurement of his enemies in the castle dungeon"
• S: (n) enslavement, captivity (the state of being a slave) "So every bondman in his own hand bears the power to cancel his captivity"--Shakespeare