philosophy philosophy /fəˈlɑːsəfi/

noun

1. () A belief (or system of beliefs) accepted as authoritative by some group or school  ( philosophical system , school of thought , ism , doctrine , philosophy )
   a belief (or system of beliefs) accepted as authoritative by some group or school
   
2. () The rational investigation of questions about existence and knowledge and ethics  ( philosophy )
   the rational investigation of questions about existence and knowledge and ethics
    I am studying philosophy as my major subject
   I am studying philosophy as my major subject
   
   
3. () Any personal belief about how to live or how to deal with a situation  ( philosophy )
   any personal belief about how to live or how to deal with a situation
    Self-indulgence was his only philosophy
   self-indulgence was his only philosophy
    My father's philosophy of child-rearing was to let mother do it
   my father's philosophy of child-rearing was to let mother do it