(euphemistic, humorous) The hinder parts of the body. / (mathematics) The probability that a hypothesis is true (calculated by Bayes' theorem).

(Britain) A particularly difficult question or puzzle. / Someone who asks a question or sets a problem.

A long dowel or plank protruding from the ground; a fencepost; a lightpost. / (construction) A stud; a two-by-four. / A pole in a battery.

(transitive) To hang (a notice) in a conspicuous manner for general review. / To hold up to public blame or reproach; to advertise opprobriously; to denounce by public proclamation.

(obsolete) Each of a series of men stationed at specific places along a postroad, with responsibility for relaying letters and dispatches of the monarch (and later others) along the route.

To travel with relays of horses; to travel by post horses, originally as a courier. / To travel quickly; to hurry.

With the post, on post-horses; by a relay of horses (changing at every staging-post); hence, express, with speed, quickly. / Sent via the postal service.

An assigned station; a guard post. / An appointed position in an organization, job.

To enter (a name) on a list, as for service, promotion, etc. / To assign to a station; to set; to place.

After; especially after a significant event that has long-term ramifications.