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English definition of “theory”

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theory

noun [C/U]  /ˈθɪər·i, ˈθi·ə·ri/ us  
something suggested as a reasonable explanation for facts, a condition, or an event, esp. a systematic or scientific explanation: [U] Adele took a course in modern political theory. [C] I have a theory (= an opinion) about why everybody in the city is in such a hurry.
Idioms
Translations of “theory”
in Korean 이론…
in Arabic نَظَرِيّة…
in French théorie…
in Turkish kuram, teori…
in Italian teoria…
in Chinese (Traditional) 理論, 學說, 意見…
in Russian теория…
in Polish teoria…
in Spanish teoría…
in Portuguese teoria…
in German die Theorie…
in Catalan teoria…
in Japanese 理論, 説…
in Chinese (Simplified) 理论, 学说, 意见…
(Definition of theory from the Cambridge Academic Content Dictionary © Cambridge University Press)
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