Answer:
To abuse someone is to hurt them physically or mentally. Another definition is to use someone or something in a way in which is not what it is used for.
There are forms of abuse. Domestic abuse, child abuse, mental abuse.
I don't really understand why people abuse people. It's flat out cruel. But, people abuse other people to have a sense of power over the person.
It goes waaaayyy deeper than this, but that's the BASICS.
