Meaning
A theory is a well-substantiated explanation of an aspect of the natural world that is based on a body of evidence and can be tested through experiments and observations. In various fields, it refers to a system of ideas intended to explain something, particularly one based on general principles independent of the thing to be explained.
Synonyms
- Hypothesis
- Concept
- Framework
- Model
- Principle
Antonyms
- Fact
- Certainty
- Reality
- Proof
- Truth
Examples
1. The theory of evolution explains how species adapt and change over time through natural selection.
2. In physics, Einstein's theory of relativity revolutionized our understanding of space and time.
3. The scientific community is still testing the theory that dark matter constitutes the majority of the universe's mass.
4. In psychology, the theory of cognitive dissonance describes how individuals seek consistency among their beliefs and behaviors.
5. Some critics argue that the theory of climate change is overly reliant on computer models and lacks sufficient real-world data.
The word "theory" comes from the Greek word "theoria," which means "contemplation" or "speculation." It is derived from "theorein," which means "to view" or "to consider," and reflects an original meaning that involves observing and interpreting phenomena. The term evolved through Latin and Middle French before entering the English language in the late 14th century.