a lookout or vantage point

(military) The headquarters of a given unit; the operational base of a unit's commanding officer.

The post of a canal's lock gate which abuts against the wall.

plural of quoin post

plural of command post

plural of sound post

(engineering) A bearing for a revolving shaft, adapted to be fastened to a post.

plural of Samson post

(nautical) A strong post resting on the keelson and supporting a beam of the deck. / (nautical) A temporary or movable pillar carrying a leading block or pulley for various purposes.

A 16th-century English gambling card game.