noun.
A new thing; a novelty.
noun.
In architecture, an upright cylinder or pillar which forms a center from which the steps of a winding stair radiate, and supports their inner ends from the bottom to the top.
noun.
In carpentry, the tall and more or less ornamental post at the head or foot of a stair, supporting a handrail.
noun.
In engineering, a cylindrical pillar terminating the wing-wall of a bridge.
noun.
In a ship, an upright timber which receives the tenons of the rails leading from the breastwork of the gangway.