The word "Nephilim" originates from Hebrew and refers to a group of giants known for their extraordinary strength and supernatural abilities. However, there are several synonyms that can be used to describe the Nephilim, including Titans, Gigantes, Anakim, and Rephaim. Titans are god-like figures who also possess immense strength and powers. Gigantes are giants from Greek mythology who are known for their formidable strength and size. Anakim are a group of giants described in the Old Testament, who were believed to be the children of Anak. Lastly, Rephaim were a race of giants mentioned in the Bible who were renowned for their strength and their ability to survive even after death.