There are many different synonyms for the term "god of war" depending on the culture and mythology being referenced. In Greek mythology, the god of war was typically known as Ares, while in Roman mythology this role was filled by Mars. In Hindu mythology, the god of war is often referred to as Kartikeya or Skanda, while in Norse mythology the closest equivalent might be Odin, who was associated with battle and death. Other possibilities for synonyms for the god of war might include terms like warrior, champion, or hero, which all connote strength, courage, and a willingness to fight for what one believes in.