<p><strong>Noun:</strong></p><ul><li>A pin or bolt, especially one on which something turns, as the gudgeon of a hinge.</li><li>A pin, bolt, or hook by which a gun or the like is attached to the rear of a towing vehicle.</li><li>A cast iron or steel base for a wooden post, often cast in a single piece with a cap for a lower post.</li></ul>