Outrigger
I believe it is called a "spar".
Since the definition of spar is a pole that supports the sail of a ship or boat, the antonyms of spar are the antonyms of the synonyms of spar. Some synonyms are rod, rail, and varnish.
It is a spar. Though it is usually called a health spar, to differentiate it from a spar in the rigging on a ship, or a spar town (the spar town of Bath, England is one example).
a rock sticking up (or projecting) out of the ground is called an outcrop.
1-During the case, the judge directed lawyers not to spar with each other in court. 2-It is natural for boys to spar with their friends over girls they like. 3-The rough weather broke the sailing boat's spar and it had to be rescued by the lifeboat.
A bowsprit is a projecting beam or spar located at the bow (front) of a boat, typically extending forward beyond the hull. It serves several purposes, including providing support for the forward sails, such as the jib or genoa, and allowing for better sail shape and performance. Additionally, the bowsprit can enhance the vessel's stability and maneuverability, particularly in larger sailing ships.
A plane, or any of a number of planes, projecting from the hull of a submarine boat, which by being elevated or depressed cause the boat, when going ahead, to sink or rise, after the manner of an aëroplane. 2. A projecting plane or fin on a gliding boat to lift the moving boat on top of the water; also, a gliding boat. Of a boat, to plane (see Plane, below).
This is called a "strut" or "spar".
It is called a spout
Spar
It is called a spout