Renunciation is the act of renouncing or rejecting something. In the context of yoga and Indian philosophy, renunciation is the giving up of worldly attachments in order to achieve spiritual enlightenment or liberation from the recurring cycle of life, death and rebirth.
In Hinduism, the act of renunciation is known by the Sanskrit term, sannyasa. In Buddhism, it is usually known by the Pali term, nekkhamma. In the Hindu text, the Bhagavad Gita, Krishna explains that both the yoga of action and the yoga of renunciation are paths to liberation.