# Synonyms to fourth dimension

relativity, Einstein theory, balance, coequality, communion, community, contingency, continuum theory, corelation, correlation, correlativism, correlativity, correspondence, cosmic constant, dependence, equilibrium, equipollence, equivalence, four-dimensional geometry, four-dimensional space, interrelation, inverse proportion, inverse ratio, inverse relationship, mutuality, other continuums, principle of equivalence, principle of relativity, proportionality, reciprocality, reciprocation, reciprocity, space-time, space-time continuum, symmetry, theory of relativity, time-space, space time, 3-D, chronology, continuity, cubic, dimensional, duration, duree, flat, fourth-dimensional, lastingness, period, proportional, psychological time, space, spatial, spatiotemporal, spherical, stereoscopic, superficial, surface, tense, term, the future, the past