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 …

The meaning of THEORY is a scientifically acceptable or plausible general principle or body of principles based on data and offered to explain phenomena. How to use theory in a sentence.

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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. …

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

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.

theory, n. meanings, etymology, pronunciation and more in the Oxford 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 between competing groups.

Dec 25, 2025 · 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.

THEORY meaning: 1 : an idea or set of ideas that is intended to explain facts or events; 2 : an idea that is suggested or presented as possibly true but that is not known or proven to be true