A similar post preventing vehicle access to a pedestrian area, to delineate traffic lanes, or used for security purposes.
A strong vertical post of timber or iron, fixed to the ground and/or on the deck of a ship, to which the ship's mooring lines etc are secured.
A post on a highway, often with one or more fingerposts, showing the distance in miles to nearby places
A sign or post beside a railway marking the distance from the (actual or nominal) start of a line (usually the principal terminus or junction with a more major line)
To place mileposts along (a road, etc.).