The Tengyur or Tanjur or Bstan-’gyur (Tibetan: "Translation of Teachings") is the Tibetan collection of commentaries to the Buddhist teachings, or "Translated Treatises".
Together with the 108-volume Kangyur (the Collection of the Words of the Buddha), these form the basis of the Tibetan Buddhist canon. "The Kangyur usually takes up a hundred or a hundred and eight volumes, the Tengyur two hundred and twenty-five, and the two together contain 4,569 works."
The Tibetan Bön religion, under the influence of Buddhism, also has its canon literature divided into two sections called the Kangyur and Tengyur but the number and contents of the collection are not yet fully known. Apparently, Bön began to take more on a literary form about the time Buddhism began to enter Tibet, although it could have had some written register some time before that.