監禁,下獄,坐牢
imprisonment n 1: putting someone in prison or in jail as lawful punishment 2: 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" [syn: {captivity}, {incarceration}, {immurement}] 3: the act of confining someone in a prison (or as if in a prison) [syn: {internment}]