Kahuna is a general name applied to such persons as have a trade, an art or who practice some profession; some qualifying term is generally added. ‘Kahuna’ was a title, like MD or PhD, and additional descriptive words were used to designate the field of expertise.
At the height of ancient Hawaiian civilization there were dozens of classes of kahuna. Each was trained in a specific aspect of ancient culture and they were considered to be among the wisest in society. They also had inherent spiritual gifts and special abilities to communicate with the ancestors.