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| Action |
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Spin on the ball and the movement of the pins caused by that spin. A relatively slow ball with a lot of action can be much more effective than a very fast ball with little action.
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| Address |
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The bowler's stance before beginning the approach.
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| All Events |
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A score based on a bowler's combined total from singles, doubles, and team events in a tournament.
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| Alley |
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Strictly, a group of lanes or the bowling establishment that houses them. Often used, though, to mean a single lane.
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| Anchor; Anchor Man |
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Last bowler to roll for a team; usually the team's best bowler. It originally comes from tug-of-war, where the strongest, heaviest man on the team is stationed at the end as an anchor.
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| Angle |
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The direction at which the ball is traveling when it enters the pocket.
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| Approach |
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1) The movement of the bowler from address to delivery. 2) The area of the lane behind the foul line, which must be at least 15 feet long.
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| Arrows |
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Seven aiming points marked in the lane to allow the bowler to determine the correct release point.
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