#1 correspondence n. communication by the exchange of letters. wn
#2 correspondence n. [agreement] compatibility of observations; "there was no agreement between theory and measurement"; "the results of two tests were in correspondence". wn
#3 correspondence n. [commensurateness, proportionateness] the relation of corresponding in degree or size or amount. wn
#4 correspondence n. [symmetry, symmetricalness, balance] (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane. wn
#5 correspondence n. [parallelism] similarity by virtue of corresponding. wn
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