paradigm

noun
par*a*digm \ ˈper-ə-ˌdīm \ ˈpa-rə- \ -ˌdim \
15th century{ds||1||}
  • a model for something that may be copied : example, pattern; especially : an exceptional example or archetype
  • a philosophical and theoretical framework of a scientific school or discipline within which theories, laws, and generalizations and the experiments performed in support of them are formulated; broadly : a philosophical or theoretical framework of any kind
  • an example of a conjugation or declension showing a word in all its inflectional forms

paradigm shift

noun
paradigm shift \
  • an important change that happens when the usual way of thinking about or doing something is replaced by a new and different way
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