(Homonym: male).
1. The system whereby messages are transmitted via the post office; SYN. post, postal service.
2. The bags of letters and packages that are transported by the postal service.
3. Any particular collection of letters or packages that is delivered.
4. A conveyance that transports mail.

ETYM Scot., from mail tribute, rent. Related to Mail.
The transmission of a letter; SYN. posting.

1. A piece of timber or metal fixed firmly in an upright position.
2. A pole or stake set up to mark something (as the start of a race track); SYN. stake.
3. The position where something or someone (as a guard or sentry) stands or is assigned to stand; SYN. station.

ETYM Cf. French postal.
1. Of or relating to the system for delivering mail.
2. Conducted by mail.
3. Insanely or murderously violent — usually used in the phrase go postal.