House Arrest
noun, verbal noun
なんきん
拘置 （こうち） Detention, Confinement
軟禁 （なんきん） House Arrest
Soft 軟 prohibition 禁 of movement is House Arrest 軟禁. It's soft because it's not as prohibiting as prison.
The naan なん king きん was put under House Arrest for stealing naan.