Lord Horror is a term used to describe a character who embodies evil and terror. There are various synonyms and related terms that can be used to describe this figure, including devil, demon, fiend, monster, tyrant, and despot. Each of these terms has its own connotations and associations, but all evoke a sense of darkness and malevolence. Some other related terms might include antichrist, devil incarnate, fallen angel, or wickedness personified. These terms may be used in literature, film, or other forms of media to evoke a sense of fear or dread in readers or viewers. Overall, synonyms for Lord Horror capture the bleak and menacing nature of this archetype.