[noun] compatibility of observations; "there was no agreement between theory and measurement"; "the results of two tests were in correspondence" Synonyms:agreement
[noun] a function such that for every element of one set there is a unique element of another set Synonyms:mapping, map
[noun] communication by exchange of letters
[noun] (mathematics) an attribute of a shape or relation; exact correspondence of form on opposite sides of a dividing line or plane Synonyms:symmetry, symmetricalness, balance
[noun] similarity by virtue of correspondence Synonyms:parallelism