Someone who is the property of another person is called a slave. To own a slave is morally and legally wrong; people should be free.
Throughout history there have been slaves, and in some parts of the world some people still force others into slavery. Often the word is used more loosely. You might buy a lot of clothes because you're a slave to the latest fashion trends. You could spend all day in the kitchen, preparing 12 casseroles, working like a slave. That kind of exaggeration is common, but don't kid yourself: nothing is really similar to — or as horrible as — being a slave.
