a Hindu or Sikh religious teacher or leader 古鲁（印度教或锡克教的宗教导师或领袖） - (informal)
a person who is an expert on a particular subject or who is very good at doing something 专家；权威；大师 a management/health/fashion, etc. guru 管理、保健、时装等专家 Jean-Paul Sartre was the guru of post-war French philosophy. 让·保罗·萨特（Jean-Paul Sartre）是战后法国哲学大师。 Libby Purves meets the woman who’s become the guru of children’s television. 利比·珀维斯（Libby Purves）遇见了这位成为儿童电视专家的女人。 Most management gurus base their appeal on one big theme. 管理学大师大多因集中论述某个宏观命题而使人信服。
Word Originfrom Hindi and Punjabi, from Sanskrit guru ‘weighty, grave’ (compare with Latin gravis), hence ‘elder, teacher’.