CORRESPONDENCE
agreement, correspondence
(noun) compatibility of observations; “there was no agreement between theory and measurement”; “the results of two tests were in correspondence”
parallelism, correspondence
(noun) similarity by virtue of corresponding
symmetry, symmetricalness, correspondence, balance
(noun) (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
correspondence
(noun) communication by the exchange of letters
correspondence, commensurateness, proportionateness
(noun) the relation of corresponding in degree or size or amount
Source: WordNet® 3.1
Noun
correspondence (countable and uncountable, plural correspondences)
(uncountable) Friendly discussion.
(uncountable) Reciprocal exchange of civilities, especially conversation between persons by means of letters.
(countable) An agreement of situations or objects with an expected outcome.
(uncountable) Newspaper or news stories, generally.
(countable) A postal or other written communication.
(uncountable) Postal or other written communications.
(set theory, countable) A relation.
(theology) According to Swedenborg, a relationship of similarity between physical and spiritual things, such as that of light to wisdom, or warmth to love.
Source: Wiktionary
Cor`re*spond"ence (-spnd"ens), n. Etym: [Cf. F. correspondance.]
1. Friendly intercourse; reciprocal exchange of civilities;
especially, intercourse between persons by means of letters.
Holding also good correspondence with the other great men in the
state. Bacon.
To facilitate correspondence between one part of London and another,
was not originally one of the objects of the post office. Macualay.
2. The letters which pass between correspondents.
3. Mutual adaptation, relation, or agreement, of one thing to
another; agreement; congruity; fitness; relation.
Source: Webster’s Unabridged Dictionary 1913 Edition