Masts are mounted vertically. Other names for other structures include:
mast
mast
Mast.
Perhaps you are referring to the mast.
It could be the mast or even a boathook.
The pole is a flag holder. Mast is another word for flag holder.
You are describing the mast.
a pole on a sailboat is a mast
A stout round pole used as a ship's mast is called a "mast." It serves as the vertical structure to support sails and rigging, playing a crucial role in the vessel's navigation and propulsion. Depending on its height and function, masts can be categorized into different types, such as main mast, fore mast, and mizzen mast.
Mast
A mast
The pole on a sailboat is called the mast.