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Definitions of theory

  1. a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena; "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices" Wordnet Dictionary DB
  2. a belief that can guide behavior; "the architect has a theory that more is less"; "they killed him on the theory that dead men tell no tales" Scrapingweb Dictionary DB
  3. A doctrine, or scheme of things, which terminates in speculation or contemplation, without a view to practice; hypothesis; speculation. Webster Dictionary DB
  4. An exposition of the general or abstract principles of any science; as, the theory of music. Webster Dictionary DB
  5. The science, as distinguished from the art; as, the theory and practice of medicine. Webster Dictionary DB
  6. The philosophical explanation of phenomena, either physical or moral; as, Lavoisier's theory of combustion; Adam Smith's theory of moral sentiments. Webster Dictionary DB
  7. An explanation, or system of anything: an exposition of the abstract principles of a science or art: speculation as opposed to practice. The american dictionary of the english language. By Daniel Lyons. Published 1899.
  8. Explanation or system of anything; unproved explanation of any series of phenomena; exposition of abstract principles; speculation. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.
  9. Speculation; a doctrine or scheme which terminates in mere speculation; an exposition of the general principles of anything; the science distinguished from the art of a thing; the philosophical or scientific explanation of phenomena. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  10. A doctrine or scheme of things terminating in speculation, and without a view to practice; the abstract principles of any art considered without reference to practice; the opposite of practice; the science, distinguished from the art; the philosophical explanation of phenomena, either physical or moral; a scheme or system founded on inferences drawn from certain principles, or from the particular arrangement of certain facts. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.

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Usage examples for theory

  1. But it is only a theory of mine. – The Film Mystery by Arthur B. Reeve
  2. How's that for a theory – The Monk of Hambleton by Armstrong Livingston
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