1. Something that can't be taken away by someone else.
2. A contract between an individual and the country/state with which they are a citizen. In return for paying taxes and following laws, they can expect services, utilities, military, education, etc.
3. These things are not something you're entitled to morally (like water, as there's no one to sue if you don't have water in your region), but societies should recognize the need for water, and thus it is moral and right to help ensure that all people have access.
Positive rights are very much a real thing, but they're very different from negative rights, and they have very different implementation issues.
Life, liberty, and property are all things that are only guaranteed by societal standards and enforcement. Murder, theft, and enslavement is the norm where the rule of law and enshrinement of rights are absent.
Much of the US enslaved human beings for hundreds of years - liberty is clearly only something we get by being a member of a specific society.
edit: I may have misunderstood your comment. I mean that human rights are things that are violated by taking them away, not failing to give them to you. So while life can be taken from you, doing so would violate human rights. Whereas arguing that internet is a human right doesn't work with this model, because the current violation of that 'right' doesn't just result from someone taking something away, but from someone failing to give it to you.
