You call it "the start of a golf hole."
on the tee
Hole out is simply finishing a hole of golf, obviously by putting the ball in the hole.
A round of golf is simply started when a player hits their tee shot on the first hole.
4.25 inches is the current size of a golf hole
hole 12 at hunters canyon golf course
The 19th hole in golf is called the club house
The measurement of a golf hole for a golf course is always 4 1/4 inches.
A single swing that lands the ball into a golf hole. Therefore hole in one.
Four and a quarter inches, is the diameter of a golf hole.