For the longest time I never really understood what people meant when they're talking about rights, they're a very abstract notion. But I recently read a book about the Bill of Rights, and discovered that the term "right" in this context is the opposite of wrong, i.e. "right and wrong". So if you say someone has a right to do something, you're saying that it's right for them to be allowed to take that action (instead of wrong). That doesn't mean that anyone is required to give you those rights, but by saying it's a right, you're saying that if someone takes it away, they're doing something wrong.