Pythia

This term refers specifically to the female oracle of Delphi, carrying a heavy connotation of divine mystery and ambiguity. It evokes the image of a woman in a trance, channeling the god Apollo to provide guidance that was notoriously difficult to interpret, often leading to unintended consequences for those seeking her counsel.

As a proper noun referring to a specific historical and mythological office, it is treated as a singular entity. While it can be used generically to describe the role of the priestess, it does not function as a common countable noun in standard English usage.