Possible Definitions:
1. Oracle (n.) The answer of a god, or some person reputed to be a god, to an inquiry respecting some affair or future event, as the success of an enterprise or battle.
2. Oracle (n.) Hence: The deity who was supposed to give the answer; also, the place where it was given.
3. Oracle (n.) The communications, revelations, or messages delivered by God to the prophets; also, the entire sacred Scriptures -- usually in the plural.
4. Oracle (n.) The sanctuary, or Most Holy place in the temple; also, the temple itself.
5. Oracle (n.) One who communicates a divine command; an angel; a prophet.
6. Oracle (n.) Any person reputed uncommonly wise; one whose decisions are regarded as of great authority; as, a literary oracle.
7. Oracle (n.) A wise sentence or decision of great authority.
8. Oracle (v. i.) To utter oracles.
