There are a few synonyms that can be used for the name "Rea Silvia". "Ilia" is one of them, which refers to the Roman goddess of fertility and motherhood. Another synonym is "Rhea Sylvia", which is the anglicized version of the same name. Additionally, "Ocilia" may refer to the Italian town where Rea Silvia is said to have lived. "Numitor" is also a synonym, as it refers to Rea Silvia's father, who was a king of Alba Longa. Finally, "Mars" can be used as a synonym, as he is the god with whom Rea Silvia is believed to have had twin sons, Romulus and Remus.