Definition of philosophy noun from the Oxford Advanced American Dictionary

        

    philosophy

     noun
    noun
    NAmE//fəˈlɑsəfi//
     
     
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  1. 1[uncountable] the study of the nature and meaning of the universe and of human life moral philosophy the philosophy of science a professor of philosophy a degree in philosophy
  2. 2[countable] a particular set or system of beliefs resulting from the search for knowledge about life and the universe the philosophy of Jung the development of different philosophies
  3. 3[countable] a set of beliefs or an attitude to life that guides someone's behavior Her philosophy of life is to take every opportunity that presents itself.
See the Oxford Advanced Learner's Dictionary entry: philosophy