Satanophobia is the fear of Satan or all things related to him. Some possible synonyms for this phobia can include demonophobia, diabolophobia, or luciferophobia. These words all express a fear of evil or demonic entities that are frequently associated with Satan. Other similar words could include supernatural phobias like horror, terror or fear of the unknown. However, it is important to note that not all supernatural fears are necessarily related to Satan, and that fear of the devil is a distinct and specific phobia that may require different techniques or treatments for overcoming.