A Tjurunga or as it is sometimes spelled, Churinga, is an object considered to be of religious significance by Central Australian indigenous people of the Arrernte (Aranda, Arunta) groups. Tjurunga often had a wide and indeterminate native significance. They may be used variously in sacred ceremonies, as bullroarers, in sacred ground paintings, in ceremonial poles, in ceremonial headgear, in sacred chants and in sacred earth mounds.
Generally speaking, tjurunga denote sacred stone or wooden objects possessed by private or group owners together with the legends, chants, and ceremonies associated with them. They were present among the Arrernte, the Luritja, the Kaitish, the Unmatjera, and the Illpirra. These items are most commonly oblong pieces of polished stone or wood. Some of these items have hair or string strung through them and were named "bull roarers" by Europeans. Upon each tjurunga is a totem of the group to which it belongs. Tjurunga are highly sacred, in fact, they are considered so sacred that only a few are able to see them and likewise it is considered sacrilegious to publish a picture of them. Durkheim suggests that the name "churinga" is normally a noun, but can also be used as an adjective meaning "sacred".
The term Tjurunga was translated by Strehlow to mean something similar to secret and personal. Tju means "hidden" or "secret", and runga means "that which is personal to me". Kempe argued against this translation and suggested that Tju means "great", "powerful", or "sacred" and that runga did not translate into personal ownership.
The ownership of sacred tjurunga amongst the Arrernte groups was determined largely by "the conception site" of every individual member of a patrilineal totemic clan. Because these relics are considered sacred, their availability is limited to a small number of people. During the early 20th century and before, only initiated males were able to see or touch these sacred objects. Women and uninitiated males were not allowed to touch them or see them, except from a far distance. The tjurunga were kept separately from the rest of the clan in a sacred location that was also unavailable to the uninitiated and women.