Answer: post

AnswerCrossword Clue
POSTOpposite of pre-
POSTMilitary assignment
POSTWashington daily
POSTMilitary installation
POSTSentry's place
POSTColumn
POSTPlace for a guard
POSTStation
POSTBig name in breakfast cereal
POSTNewsgroup message
POSTBlog comment
POSTPut up
POSTBlog update
POSTChime in at a blog
POSTJerusalem newspaper
POSTDisplay, as a dean's list
POSTMessage sent to a newsgroup
POSTStarting gate
POSTWord after hitching or scratching
POSTUpright
poststation for soldiers or traders
POSTDenver newspaper
POSTMail a letter
POSTMail
POSTPlace notices
POSTWriting on the wall, perhaps?
POSTBlog contribution
POSTWashington paper
POSTPlace for hitching
POSTBlog entry
POSTRacetrack pole
POSTAssignment
POSTBird feeder mount
POSTTweet, e.g.
POSTWork station
POSTEmily of etiquette
POSTMilitary station
POSTPut on a board
POSTTack up, as a notice
POSTAlpha-Bits maker