1. In Hinduism, superhuman powers, especially associated with Śiva, but also listed by Patañjali in Yoga Sūtra 3. 16–55. Since they include knowledge of past and future, previous births, hour of death, etc., they are virtually identical with siddhis/iddhis. More generally, they are the inspirations of musicians, artists, etc.
2. The ashes with which Śiva smeared his body (as do his devotees), having the power to restore the dead to life.
"Vibhūti." The Concise Oxford Dictionary of World Religions. . Encyclopedia.com. (December 14, 2018). https://www.encyclopedia.com/religion/dictionaries-thesauruses-pictures-and-press-releases/vibhuti
"Vibhūti." The Concise Oxford Dictionary of World Religions. . Retrieved December 14, 2018 from Encyclopedia.com: https://www.encyclopedia.com/religion/dictionaries-thesauruses-pictures-and-press-releases/vibhuti