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]
(..) Maybe I should take pictures of you naked. Okay. Okay. But you have to promise that you won't post them on the Internet. I might want to run for public office some day. - Are you serious? - Yeah. Aren't you? (..)2005 TvShow: Six Feet Under Title: Everyone's Waiting Season: 5 Episode 12