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skateboard 
Wooden, usually concave board mounted on four small wheels; it is guided by body movements.
truck
Device that connects the wheels to the board; it enables the wheels to change direction.
nose
Front end of the board.
tail
Rear end of the board.
wheel
Small round object that turns on an axis so the board can move backward or forward; its diameter and durability vary with the activity.
grip tape
Rough surface attached to the board that helps the skater’s shoes adhere to it.
