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setup 
Set of 10 pins arranged in an equilateral triangle at the end of each lane of the alley.
headpin
Also called the kingpin, it makes up the point of the triangle formed by the pins.
pocket
Tactical zone where the player rolls the ball to try to hit all the pins with one ball (strike).
pin
Piece of wood that is covered with plastic; it is stood on end on the floor and the player knocks it over with a ball.
