Sauron is a well-known character from J.R.R. Tolkien's epic fantasy series, The Lord of the Rings. Synonyms for Sauron might include the Dark Lord, the Eye of Sauron, or the Necromancer. Other possible synonyms could relate to Sauron's role as a symbol of evil, such as the Adversary or the Enemy. Some might also refer to Sauron by his physical appearance, such as the Black One or the Shadow. Regardless of the synonym used, Sauron remains an iconic figure in the world of fantasy literature, representing the ultimate threat to those who fight for freedom and justice.