/ ˌkɒrəˈspɒndəns; NAmE ˌkɔːrəˈspɑːn-; ˌkɑː-/ noun
1.
[ U ] correspondence (with sb) the letters a person sends and receives :
personal / private correspondence
The editor welcomes correspondence from readers on any subject.
the correspondence column / page (= in a newspaper)
2.
[ U , C ] correspondence (with sb) the activity of writing letters :
I refused to enter into any correspondence (= to exchange letters) with him about it.
We have been in correspondence for months.
We kept up a correspondence for many years.
3.
[ C , U ] correspondence (between A and B) a connection between two things; the fact of two things being similar :
There is a close correspondence between the two extracts.
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WORD ORIGIN
late Middle English : via Old French from medieval Latin correspondentia , from correspondent- corresponding from the verb correspondere , from cor- together + Latin respondere , from re- again + spondere to pledge.