I am dirty when you're clean, I get wet as you dry.

There is a word in the dictionary that everyone spells and pronounces incroretcly. What is that word?

I rise without climbing, I fall without fear. I tell you the heat When warmth lingers near. Glass or digital, silent and slim, I measure the fever beneath your skin. What am I?

A good one may contain ambiguous clues, but possesses a single answer that often provides an ah hah for the solver. It may incorporate an anagram, an acronym, or another word puzzle. It may misdirect the unwary, but provide guidance to the thoughtful. It should avoid typos, misspellings, and poor grammar, unless those are part of the clues. It is best to avoid repeating common answers, or failing that, the clues should be novel and creative. Thank you to all who create these types of posts and those who attempt to solve them.

A Ridley Scott dream of Ripley and her crew. You can scream, but no one can hear you.