posting n.

Noun corresp. to v. post (but note that post can be nouned). Distinguished from a `letter' or ordinary email message by the fact that it is broadcast rather than point-to-point. It is not clear whether messages sent to a small mailing list are postings or email; perhaps the best dividing line is that if you don't know the names of all the potential recipients, it is a posting.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

Post"ing (?), n.

1.

The act of traveling post.

2. Bookkeeping

The act of transferring an account, as from the journal to the ledger.

Posting house, a post house.

© Webster 1913.