the secrecy of 英語で:

Did the correspondence come?

I can't see any correspondence between his early and later works, which is surprizing.

I like reading business correspondence.

There was a lot of correspondence on the table.

She'll be seeing to your correspondence while Miss Cobb's away.

This pair of lovers were carrying on an ardent correspondence.

No one shall be subjected to arbitrary interference with his privacy, family, home or correspondence, nor to attacks upon his honour and reputation. Everyone has the right to the protection of the law against such interference or attacks.

Compare unidirectional mass media such as radio and television with bidirectional ones such as correspondence and the Internet.