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notion

noun [C or U]
 
 
/ˈnəʊ.ʃən/ US  /ˈnoʊ-/

Definition

C1 a belief or idea: [+ that] The programme makers reject the notion that seeing violence on television has a harmful effect on children. I have only a vague notion of what she does for a living.Opinions, beliefs and points of view
(Definition of notion noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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