post

noun

A postal system.

noun

A post office.

noun

A delivery or amount of mail.

noun

One of a series of relay stations along a fixed route, furnishing fresh riders and horses for the delivery of mail on horseback.

noun

A rider on such a mail route; a courier.

intransitive verb

To mail (a letter or package).

intransitive verb

To send by mail in a system of relays on horseback.

intransitive verb

To inform of the latest news.