Difference between Parapraxis and Slip-up

What is the difference between Parapraxis and Slip-up?

Parapraxis as a noun is a mistake, such as a slip of the tongue, that reveals a concealed thought or motive while Slip-up as a noun is a mistake or error; a minor misstep.

We hope you now know whether to use Parapraxis or Slip-up in your sentence.