Meaning of correspond

(verb) be compatible, similar or consistent; coincide in their characteristics; "The two stories don't agree in many details"; "The handwriting checks with the signature on the check"; "The suspect's fingerprints don't match those on the gun"

be equivalent or parallel, in mathematics

exchange messages; "My Russian pen pal and I have been corresponding for several years"

take the place of or be parallel or equivalent to; "Because of the sound changes in the course of history, an `h' in Greek stands for an `s' in Latin"