What is a synonym for correspondence?

Here are some synonyms for correspondence, depending on the context:

General:

* Communication

* Exchange

* Interchange

* Dialogue

* Communication

* Letters (if referring to written correspondence)

Formal:

* Epistolary

* Official communication

* Formal communication

Informal:

* Letters

* Emails

* Texts

* Notes

More specific:

* Mail

* Post

* Correspondence (can also be used as a synonym)

The best synonym for "correspondence" depends on the specific context in which you are using the word. For example, if you are talking about letters between two people, "letters" might be a good synonym. If you are talking about a formal communication between two businesses, "official communication" might be a better choice.