Walking/Traveling:
Taking more than 'a step and a half' without dribbling the ball is traveling. Moving your pivot foot once you've stopped dribbling is traveling.

Carrying/palming:
When a player dribbles the ball with his hand too far to the side of or, sometimes, even under the ball.

Double Dribble:
Dribbling the ball with both hands on the ball at the same time or picking up the dribble and then dribbling again is a double dribble.

Held ball:
Occasionally, two or more opposing players will gain possession of the ball at the same time. In order to avoid a prolonged and/or violent tussle, the referee stops the action and awards the ball to one team or the other on a rotating basis.

Goaltending:
If a defensive player interferes with a shot while it's on the way down toward the basket, while it's on the way up toward the basket after having touched the backboard, or while it's in the cylinder

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