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Phonetics
/ˌkɒɹəˈspɒnd/
/ˌkɑɹəˈspɑnd/
verb
(constructed with to) To be equivalent or similar in character, quantity, quality, origin, structure, function etc.
(constructed with with) to exchange messages, especially by postal letter, over a period of time.
Example: I've been corresponding with my German pen pal for three years.To have sex with.