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1. From airplane terminology: pitch, roll, and yaw. Roll is the rotation about the horizontal longitudinal axis of an object.

2. To move horizontally on wheels, casters, or sliders.

3a. (color) To crossfade (without showing open white) from one followspot color to another, in a called time.
3b. (moving lights) To spin the entire wheel either clockwise or CCW, e.g., color roll, gobo roll.

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