Sangha is a Sanskrit word used in many Indian languages, including Pali which means "association", "assembly", "company" or "community"; In these languages, sangha is frequently used as a surname. In a political context, it was historically used to denote a governing assembly in a republic or a kingdom, and for a long time, it has been used by religious associations, including Buddhists, Jains and Sikhs. Given this history, some Buddhists have stated that the tradition of the sangha represents humanity's oldest surviving democratic institution.

A bhikkhunī or bhikṣuṇī is a Buddhist nun, fully ordained female in Buddhist monasticism. Bhikkhunis live by the Vinaya, a set of either 311 Theravada, 348 Dharmaguptaka, or 364 Mulasarvastivada school rules. Until recently, the lineages of female monastics only remained in Mahayana Buddhism and thus were prevalent in countries such as China, Korea, Taiwan, Japan, and Vietnam, while a few women have taken the full monastic vows in the Theravada and Vajrayana schools. The official lineage of Tibetan Buddhist bhikkhunis recommenced on 23 June 2022 in Bhutan when 144 nuns were fully ordained.