Ravana (ˈrɑːvənə; रावण, , ˈraːʋɐɳɐ) is a multi-headed rakshasa (demon) king of the island of Lanka, and the chief antagonist in the Hindu epic Ramayana. In the Ramayana, Ravana is described as the eldest son of sage Vishrava and Kaikesi. He abducted Prince Rama's wife, Sita, and took her to his kingdom of Lanka, where he held her in the Ashoka Vatika. Rama, with the support of vanara King Sugriva and his army of vanaras, launched an invasion against Ravana in Lanka. Ravana was subsequently slain, and Rama rescued his beloved wife Sita.
Ravana is widely portrayed as being an evil character, though he is also a learned scholar. He was well-versed in the six shastras and the four Vedas. Ravana is also considered to be the most revered devotee of Shiva. Images of Ravana are often seen associated with Shiva at temples. He also appears in the Buddhist Mahayana text Laṅkāvatāra Sūtra, in Buddhist Ramayanas and Jatakas, as well as in Jain Ramayanas. In some scriptures, he is depicted as one of Vishnu's cursed doorkeepers.
The word Rāvaṇa (Sanskrit: रावण) means "roaring" (active), the opposite of Vaiśravaṇa which means to "hear distinctly" (passive). Both Ravana and Vaiśravaṇa, who is commonly known as Kubera, are considered to be patronymics derived from "sons of Vishrava".
Ravana was a title later taken on by Dashānana, and it means "the one with ten (dasha) faces (anana)". Further, roravana is Sanskrit for "loud roaring." In Abhinava Gupta's Krama Shaiva scripture, yāsām rāvanam is used as an expression to mean people who are truly aware of the materialism of their environment.
Ravana has many other popular names such as Dasis Ravana, Dasis Sakvithi Maha Ravana, Dashaanan, Ravula, Lankapati, Lankeshwar, Lankeshwaran, Ravanasura, Ravanaeshwaran, and Eela Vendhar.
Ravana is depicted and described as having ten heads, although he is sometimes shown with only nine heads since he cut one off to convince Shiva. He is described as a devout follower of Shiva, a great scholar, a capable ruler, and a maestro of the Veena.