(idiomatic, sports) to overcome a strong competitor in a sporting event, especially by gaining a small advantage over him at the last decisive moment.

(obsolete, UK, US) A captain of a war vessel whose name appeared, or was "posted", in the seniority list of the navy.

plural of post-captain

A location where a guard is posted (station), often having a guardhouse.

(lutherie) A wooden rod located inside the body of a violin-family instrument, close to the treble-side bridge foot.

plural of post note

(finance) A note issued by a bank, payable at some future specified time, as distinguished from a note payable on demand.

(Internet) A comment, on a social networking website, that has been deleted, resulting in confusion since the conversation is now incomplete.

(obsolete, idiomatic) A known perjurer; a professional false witness.

(nautical) A post on a dock or shore, around which a rope is thrown to stop the motion of a vessel. / A similar post to restrict the motion of a horse.