theory

B1Academic AWL-1Frequent NGSL-1
UK /ˈθɪəri/US /ˈθiːəri/

Meaning

noun
a formal set of ideas that is intended to explain why something happens or exists
theory of something, the theory of evolution/relativity

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I wrote a book, I published a theory, but something was not okay -- and what it was is that, if I roughly took the people I interviewed and divided them into

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