A spinnaker pole or a whisker pole.
sprit
A spinnaker pole or a whisker pole.
Presuming you are referring to a gaff-rigged main sail, that diagonal pole would be the boom.
Pole
the north pole to the south pole?
Amundsen set sail in the Fram for the North Pole in 1910, and while at sea, altered his destination to the South Pole.
Mast
sprit
The vertical pole on a sailboat is called the mast, but at the bottom of the sail is horizontal pole called a boom. On the Tall Ships, the horizontal pole AT THE TOP of the sail is called the yardarm.
the pole that holds up the sail is called the mast
You are describing the mast.