A sail-robber? No, it's a MAST!
the pole that holds up the sail is called the mast
The halyard (a line, NOT a rope) keeps it tied up to the mast (that vertical post-thing).
A mast. Although it is attached to a mast the thing that holds a sail up is a halyard. a mast is something that pushes the boat with wind and the reason its called a mast is cause it holds the biggest sail, the thing your looking for is something that is on the bottom of the boat and runs vertical on the boat. if that gets ruined the boat is ruined, unrepairable
nothing
Mast
Mast
The forestay.
The halyard holds the sail up. When a rope has an assigned job on a boat (or a ship) it is referred to as a line.
The pole that supports the sail is called a mast. It is a vertical structure that holds the sail up and is typically made of materials like wood, aluminum, or fiberglass. The mast is essential for sailing, as it allows the sail to catch the wind and propel the boat forward.
You are describing the mast.
mast
Mast (vertical, leading edge of sail), Boom (horizontal,bottom of sail), and a spinnaker pole if you use a spinnaker which is a sail type