Imprisonment with mandatory labor sentence.

Involuntary servitude or involuntary slavery is a legal and constitutional term for a person laboring against that person's will to benefit another, under some form of coercion, to which it may constitute slavery.

An equitable servitude is a term used in the law of real property to describe a nonpossessory interest in land that operates much like a covenant running with the land.

Liberation from compulsory, unpaid labor.

The practice of holding human beings in slavery for religious purposes