Synonym for mail

Here are some synonyms for "mail":

1. Post
2. Letters
3. Correspondence
4. Messages
5. Packages
6. Parcels
7. Envelopes
8. Mailings
9. Dispatches
10. Communications

Note that some of these words may have slightly different connotations or nuances, but they all generally refer to the act of sending or receiving written or printed materials through a postal system or other means of communication.