noun A person who is held in servitude as the property of another person, and whose labor (and often also whose body and life) is subject to the owner's volition and control.
noun A drudge; one who labors or is obliged (e.g. by prior contract) to labor like a slave with limited rights, e.g. an indentured servant.
noun An abject person.
noun One who has no power of resistance to something, one who surrenders to or is under the domination of something.
a slave to passion, to strong drink, or to ambition
noun A submissive partner in a BDSM relationship who consensually submits to, sexually or personally, serving one or more masters or mistresses.
noun A sex slave, a person who is forced against their will to perform, for another person or group, sexual acts on a regular or continuing basis.
noun A device (such as a secondary flash or hard drive) that is subject to the control of another (a master).