post
nounA postal system.
nounA post office.
nounA delivery or amount of mail.
nounOne of a series of relay stations along a fixed route, furnishing fresh riders and horses for the delivery of mail on horseback.
nounA rider on such a mail route; a courier.
intransitive verbTo mail (a letter or package).
intransitive verbTo send by mail in a system of relays on horseback.
intransitive verbTo inform of the latest news.