correspondence
noun
[ kɒrɪˈspɒnd(ə)ns ]
• a close similarity, connection, or equivalence.
• "there is a simple correspondence between the distance of a focused object from the eye and the size of its image on the retina"
Similar:
correlation,
similarity,
resemblance,
comparability,
compatibility,
agreement,
consistency,
congruity,
conformity,
uniformity,
harmony,
affinity,
accordance,
accord,
concurrence,
coincidence,
association,
relationship,
connection,
interaction,
• communication by exchanging letters.
• "the organization engaged in detailed correspondence with local MPs"
Similar:
letter writing,
writing,
written communication,
Origin:
late Middle English: via Old French from medieval Latin correspondentia, from correspondent- ‘corresponding’ (see correspondent).