English

Definition of knowledge noun from the Oxford Advanced Learner's Dictionary

      

    knowledge

     noun
    noun
    BrE BrE//ˈnɒlɪdʒ//
     
    ; NAmE NAmE//ˈnɑːlɪdʒ//
     
    Teaching and learning
     
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  1. 1  [uncountable, singular] the information, understanding and skills that you gain through education or experience practical/medical/scientific knowledge knowledge of/about something He has a wide knowledge of painting and music. There is a lack of knowledge about the tax system. See related entries: Teaching and learning
  2. 2  [uncountable] the state of knowing about a particular fact or situation She sent the letter without my knowledge. The film was made with the Prince's full knowledge and approval. She was impatient in the knowledge that time was limited. I went to sleep secure in the knowledge that I was not alone in the house. They could relax safe in the knowledge that they had the funding for the project. He denied all knowledge of the affair.
  3. 3knowledge economy/industry/worker working with information rather than producing goods the emergence of consultancy as a knowledge industry the shift toward a knowledge economy
  4. Word Origin Middle English (originally as a verb in the sense ‘acknowledge, recognize’, later as a noun): from an Old English compound based on cnāwan (see know).Idioms (informal) used when you are saying goodbye to somebody or ending a letter, to give somebody your good wishes
    be common/public knowledge
     
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    to be something that everyone knows, especially in a particular community or group Their relationship is common knowledge.
    come to somebody’s knowledge
     
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    (formal) to become known by somebody It has come to our knowledge that you have been taking time off without permission.
    from the information you have, although you may not know everything ‘Are they divorced?’ ‘Not to my knowledge.’ She never, to my knowledge, considered resigning.
See the Oxford Advanced American Dictionary entry: knowledge