Assume or Presume?

assume Assume isn't only used to mean "accept as truth without checking"; it also means "take on the form of." It might be safer if you don't assume that the vampire standing in front of you isn't merely a person assuming that form. presume If you presume something, it means you act as though it's true before all the evidence is in. If you are presumed to be the fastest runner, don't get too cocky — that word implies that you haven't actually raced yet. [Source.](https://www.vocabulary.com/articles/chooseyourwords/assume-presume/)