n.
Function: noun
Etymology: Middle French poste relay station, courier, from Old Italian posta relay station, from feminine of posto, past participle of porre to place, from Latin ponere ― more at POSITION
Date: 1507
1 obsolete : COURIER
2 archaic a : one of a series of stations for keeping horses for relays b : the distance between any two such consecutive stations : STAGE
3 chiefly British a : a nation's organization for handling mail also : the mail handled b (1) : a single dispatch of mail (2) : LETTER 2A c : POST OFFICE d : POSTBOX
4 : something (as a message) that is published online