User blog:Grimlord31/What's the difference between a central antagonist, a main antagonist and a primary antagonist?

This is something I've been wondering for a while now. I see on some of the villain entries and mostly I see that they're the main antagonist of the movie or tv show that they appear in, and then I see central antagonist and primary antagonist and I just wonder why it doesn't just say 'main antagonist'. Is there a difference between them?