The crossword solution for the term 'Prophecy Source' is ORACLE, which is a six-letter word. ORACLE is a term used to describe a person or thing that is believed to be a source of wise counsel or prophetic predictions. In ancient Greece, an ORACLE was a priest or priestess who served as a medium through which the gods were believed to speak. In modern times, the term ORACLE is often used to refer to a person who can accurately predict the future.