Ocak or Odjak (Turkish: Ocak, Kurdish: Ocax, Azerbaijani: Ocaq, lit. 'hearth') is the particular religious community which adherents of Alevism belong to. In Alevi tradition, each ocak is led by a dede, who is assumed to be descended from sayyids.[1][2]
All Alevi Dedes are affiliated with a particular Ocak [lit. hearth]. Because of this, they are also called Ocakzade [lit. son of hearth]. The Ocakzade dedes are assumed to be descendants of the Prophet, and are accordingly called "seyyid".