What does oracle mean?

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oracle
ˈɒrək(ə)l/
noun
noun: oracle; plural noun: oracles
  1. 1.
    a priest or priestess acting as a medium through whom advice or prophecy was sought from the gods in classical antiquity.
  2. 2.
    archaic
    a response or message given by an oracle, especially an ambiguous one.
Origin
late Middle English: via Old French from Latin oraculum, from orare ‘speak’.