relativity
🇺🇸
/ˌreləˈtɪvəti/
🇬🇧
/ˌreləˈtɪvəti/
Einstein's theory that motion and time are relative to the observer
Einstein's theory of relativity changed how we understand space and time.
the quality of being understood only in comparison to something else
The relativity of beauty means that different cultures have different standards.