What is exactly meant by كرامت/keramet

I was discussing with a friend the term كرامت He was really confident, that people can fly and teleport if he has keramet. Or if someone is a really bad human he also can fly. I told to him that keramet could mean just a talent that someone has. For example being smart like Einstein. What do you think about that? And what is the exact definition of keramet?