Meaning of “oracle” in the English Dictionary

british dictionary

"oracle" in British English

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oraclenoun [ C ]

uk /ˈɒr.ə.kəl/ us /ˈɔːr.ə.kəl/

(especially in ancient Greece) a female priest who gave people wise but often mysterious advice from a god, or the advice given

someone who knows a lot about a subject and can give good advice:

Professor Ross is regarded as the oracle on eating disorders.

(Definition of “oracle” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)