What is tor as in glastonbury tor?

Glastonbury Tor is a hill in Somerset, England, known for its historical and mythical significance. The term "tor" refers to a rocky hill or a prominent peak, often found in the West Country of England. Glastonbury Tor features the ruins of St. Michael's Tower at its summit and is associated with various legends, including those related to King Arthur and the Isle of Avalon. The site is a popular destination for hikers and spiritual seekers, offering panoramic views of the surrounding countryside.