What is theory definition?

A theory is a set of concepts, frameworks, and principles that explain how a particular phenomenon works or functions. It is a proposed explanation of how something occurs or why it exists that is supported by empirical evidence and logical reasoning. The term theory is often used in science, social science, economics, psychology, and philosophy, among other disciplines. A theory provides a general framework for understanding and explaining a complex set of ideas or phenomena, and it can be used to make predictions about future observations or events. Theories often evolve as new evidence and ideas emerge, and they can be tested and refined through research and experimentation. Some well-known theories include Darwin's theory of evolution, Einstein's theory of relativity, and Freud's psychoanalytic theory.