the·o·ry (th  -r , thîr )n. pl. the·o·ries 1. A set of statements or principles devised to explain a group of facts or phenomena, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena. 2. The branch of a science or art consisting of its explanatory statements, accepted principles, and methods of analysis, as opposed to practice: a fine musician who had never studied theory. 3. A set of theorems that constitute a systematic view of a branch of mathematics. 4. Abstract reasoning; speculation: a decision based on experience rather than theory. 5. A belief or principle that guides action or assists comprehension or judgment: staked out the house on the theory that criminals usually return to the scene of the crime. 6. An assumption based on limited information or knowledge; a conjecture.
[Late Latin the ria, from Greek the ri , from the ros, spectator : probably the , a viewing + -oros, seeing (from hor n, to see).] |
theory Noun pl -ries 1. a set of ideas, based on evidence and careful reasoning, which offers an explanation of how something works or why something happens, but has not been completely proved: the theory of cosmology 2. the ideas and abstract knowledge relating to something: political theory 3. an idea or opinion: it's only a theory, admittedly, but I think it's worth pursuing 4. in theory in an ideal or hypothetical situation: in theory, the tax is supposed to limit inflation [Greek theōria a sight]
ThesaurusLegend: Synonyms Related Words Antonyms | Noun | 1. | theory - a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses"; "true in fact and theory"reductionism - a theory that all complex systems can be completely understood in terms of their components explanation - thought that makes something comprehensible law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics" hypothesis, theory, possibility - a tentative insight into 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" blastogenesis - theory that inherited characteristics are transmitted by germ plasm preformation, theory of preformation - a theory (popular in the 18th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable" field theory - (physics) a theory that explains a physical phenomenon in terms of a field and the manner in which it interacts with matter or with other fields economic theory - (economics) a theory of commercial activities (such as the production and consumption of goods) atomist theory, atomistic theory, atomic theory, atomism - (chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles; "the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe" holism, holistic theory - the theory that the parts of any whole cannot exist and cannot be understood except in their relation to the whole; "holism holds that the whole is greater than the sum of its parts"; "holistic theory has been applied to ecology and language and mental states" | | 2. | theory - a tentative insight into 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"hypothetical - a hypothetical possibility, circumstance, statement, proposal, situation, etc.; "consider the following, just as a hypothetical" gemmule - the physically discrete element that Darwin proposed as responsible for heredity framework, model, theoretical account - a hypothetical description of a complex entity or process; "the computer program was based on a model of the circulatory and respiratory systems" conjecture, speculation - a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence); "speculations about the outcome of the election"; "he dismissed it as mere conjecture" theory - a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses"; "true in fact and theory" historicism - a theory that social and cultural events are determined by history | | 3. | theory - 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"belief - any cognitive content held as true egoism - (ethics) the theory that the pursuit of your own welfare in the basis of morality |
theory noun 1. hypothesis, philosophy, system of ideas, plan, system, science, scheme, proposal, principles, ideology, thesis << OPPOSITE fact
Translations theory [ˈθɪərɪ] n → teoría
theory [ˈθɪərɪ] n → théorie f
theory [ˈθɪərɪ] n → Theorie f; in theory → theoretisch
theory [ˈθɪərɪ] n → teoria;
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