Post

(1.) A runner, or courier, for the rapid transmission of
letters, etc. (2 Chr. 30:6; Esther 3:13, 15; 8:10, 14; Job 9:25;
Jer. 51:31). Such messengers were used from very early times.
Those employed by the Hebrew kings had a military character (1
Sam. 22:17; 2 Kings 10:25, "guard," marg. "runners"). The modern
system of postal communication was first established by Louis
XI. of France in A.D. 1464.

(2.) This word sometimes also is used for lintel or threshold
(Isa. 6:4).