What is the meaning of relativity theory?

Physics) the theory that space and time are relative concepts rather than absolute concepts. (.
- synonyms: relativity, theory of relativity, Einstein's theory of relativity

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APA	WordNet. (2010). relativity theory. Retrieved September 20, 2026, from http://smartdefine.org/relativity_theory/definitions/1306152
Chicago	WordNet. 2010. "relativity theory" http://smartdefine.org/relativity_theory/definitions/1306152 (accessed September 20, 2026).
Harvard	WordNet 2010, relativity theory, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/relativity_theory/definitions/1306152>.
MLA	WordNet. "relativity theory" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/relativity_theory/definitions/1306152>

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