That's not correct. The other poster was talking about a monopoly in the more general sense: If someone has exclusive control of a thing, they have a monopoly. It's absolutely correct to say that US copyright law grants a limited-time monopoly to creators.
You're talking about an entity that has a monopoly (generally in a market). Perhaps confusingly, monopoly is also the word we use to describe such an entity.
You're talking about an entity that has a monopoly (generally in a market). Perhaps confusingly, monopoly is also the word we use to describe such an entity.