There are different synonyms for the Rig-Veda, which is one of the oldest sacred texts of the Hindu religion, composed in Sanskrit. It is also known as the "Rigveda," the "Rig Veda," or the "Rigved." The term "Rig" means praise or hymn, while "Veda" means knowledge or wisdom. Thus, the Rig-Veda refers to a collection of hymns and chants that convey spiritual and philosophical insights. Other synonyms for the Rig-Veda include "Veda of the Sacred Knowledge," "Veda of the Verses," "Book of Mantra," and "Science of Sacred Chants." The Rig-Veda is divided into ten books or mandalas, containing more than a thousand hymns that praise various gods and goddesses.