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  1. THEORY Definition & Meaning - Merriam-Webster

    Because of the rigors of experimentation and control, it is understood to be more likely to be true than a hypothesis is. In non-scientific use, however, hypothesis and theory are often used …

  2. Theory - Wikipedia

    A theory is, in general, any hypothesis or set of ideas about something, formed in any number of ways through any sort of reasoning for any sort of reason. When applied to intellectual or …

  3. Theory Definition & Meaning | Britannica Dictionary

    theory (noun) conspiracy theory (noun) quantum theory (noun) theory / ˈ θiːjəri/ noun plural theories Britannica Dictionary definition of THEORY 1 : an idea or set of ideas that is intended …

  4. THEORY | English meaning - Cambridge Dictionary

    THEORY definition: 1. a formal statement of the rules on which a subject of study is based or of ideas that are…. Learn more.

  5. THEORY definition and meaning | Collins English Dictionary

    A theory is a formal idea or set of ideas that is intended to explain something. Marx produced a new theory about historical change based upon conflict.

  6. theory, n. meanings, etymology and more | Oxford English …

    theory, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

  7. theory - Wiktionary, the free dictionary

    12 hours ago · Scientists and creationists are understanding the word "theory" in two very different senses. Evolution is a theory in the same sense as the heliocentric theory.

  8. theory - WordReference.com Dictionary of English

    Theory, hypothesis are used in non-technical contexts to mean an untested idea or opinion. A theory in technical use is a more or less verified or established explanation accounting for …

  9. THEORY Definition & Meaning | Dictionary.com

    THEORY definition: a coherent group of tested general propositions, commonly regarded as correct, that can be used as principles of explanation and prediction for a class of phenomena. …

  10. theory noun - Definition, pictures, pronunciation and usage notes ...

    Definition of theory noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.