correspondence

nouns

communication by the exchange of letters
correspondence
is derived from
correspond
is a type of (narrower)
mail that includes letters and postcards and packages sealed against inspection
1st class, 1st-class mail, first class, first-class mail
is a type of (narrower)
communication by means of written symbols (either printed or handwritten)
black and white, written communication, written language
compatibility of observations
"there was no agreement between theory and measurement"; "the results of two tests were in correspondence"
agreement, correspondence
is derived from
correspond
the relation of corresponding in degree or size or amount
commensurateness, correspondence, proportionateness
is derived from
correspondent
(mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
balance, correspondence, symmetricalness, symmetry
similarity by virtue of corresponding
correspondence, parallelism
is derived from
correspondent