Druid or Shaman is a term used to describe a type of PRIEST or spiritual leader in many ancient cultures. The term 'PRIEST' is often used to refer to a 6-letter word for a religious leader, such as a Druid or Shaman. Gnostics is an 8-letter word that refers to a group of people who believed in the power of knowledge and the ability to gain insight into the divine. Neolithic is a 9-letter word that refers to a period of time in human history when humans began to transition from a hunter-gatherer lifestyle to a more settled agricultural lifestyle. All three terms are related to the concept of Druid or Shaman, which is a spiritual leader in many ancient cultures.