SLAVE

noun

1. 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.
2. 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.
3. An abject person.

verb

1. To work as a slaver, to enslave people.
2. To work hard.
3. To place a device under the control of another.