American English

Definition of guru noun from the Oxford Advanced American Dictionary



    , NAmE//ˈɡʊru//
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  1. 1a Hindu or Sikh religious teacher or leader
  2. 2(informal) a person who is an expert on a particular subject or who is very good at doing something a management/health/fashion, etc. guru Jean-Paul Sartre was the guru of postwar French philosophy.
See the Oxford Advanced Learner's Dictionary entry: guru