What does the post mean?

(1) (pictophonetic characters. From the horse, from "Yi/Xing" and "Yi/Xing" are also pronounced. "Lucky" means "caught in the net" and escaped by "caught in the net". "Horse" and "Fu/Xing" together mean "a transportation network extending in all directions with horses as the means of transportation". Original intention: a royal transportation network that uses horses to transport official documents, articles or news. Extended meaning: express horse relay. Horse for relay express delivery. )

(2) the original meaning is the same [post horse]

(3) post [post]

(4) Another example: post horse; Empress Dowager (astrologer's superstition is that if you get an empress Dowager through divination, it means that you will travel, go to work and move); Post office clerk (official in charge of the post office); Posthouse (a place used for rest and accommodation in ancient times); Mail book (document delivered by mail horse); Post station (hotel, post station); Post ride (courier who delivers documents by post horse)

(5) Post Road: In ancient times, it was a special road such as a carriage, and it was also a post road.