cult

noun

1. followers of an exclusive system of beliefs and practices
2. an interest followed with exaggerated zeal"he always follows the latest fads"
3. followers of an unorthodox, extremist, or false religion or sect who often live outside of conventional society under the direction of a charismatic leader
4. a religion or sect that is generally considered to be unorthodox, extremist, or false"it was a satanic cult"
5. a system of religious beliefs and rituals"devoted to the cultus of the Blessed Virgin"