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noun(physics) the theory that space and time are relative concepts rather than absolute conceptstype of:
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nounthe quality of being relative and having significance only in relation to something elsetype of:
Words sounding like good relativity
activity creativity sensitivity captivity relativity productivity nativity radioactivity objectivity subjectivity festivity connectivity positivity proclivity superconductivity selectivity conductivity reflexivity receptivity reflectivity natural radioactivity reluctivity impassivity retentivity specific activity declivity inborn proclivity social activity optical activity affectivity