post-haste, without stopping on the way

post and telegraph department

post a letter

mail train, mail van

a horse used for a daak or relay

airmail

letter box

by return post

postman, courier

parcel post

Email.

officials' rest house

Email address.

post a letter

Philately, collecting of postage stamps (as a hobby).

post office, mailbox

the post or mail

bid (at an auction)

to post relays (of horses, or runners, or palanquin-bearers)

send and receive messengers in quick succession, communicate rapidly

postal charges, postage

post office

the national organization that is responsible for postal services, a building where you can buy stamps, post letters and packages, and use other services provided by the national postal service, post office