When we lost our cat, we 'posted' (up) signs all over the neighborhood asking if people had seen him.
a horse's 'post position' [=the position of a horse in the line of horses at the start of a race]
No matter what happens, do not abandon your 'post'. [=do not leave your assigned area]
(..) Married with my uncle, my fathers brother But no more like my father than Ito Hercules... within a month! Oh most wicked speed, to post with such dexterity to incestuous sheets It is not, nor cannot come to good. But break, my heart, for I must hold my tongue - Soft you, a word, my lord - Horatio? (..)2015 Hamlet