What does the star in combos mean?

Help me! I do not know what the star mean in combos. I want to perform Moonsault Slayer.

Star means nuetral. It's like a slight pause you do before the next notation. I'm saying slight because input wise it's almost like you're not pausing anyway. In any case it's not that hard to pick up, your hands just need to get used to it. Practice practice.

Oh and another thing. I don't think moonsault slayer has a star. It's just qcf1 (quarter circle forward square).