Roll down Definition 1 of 3Pro Tip 1/3Physical Action Often involves physically moving something like a window or an object. He had to roll down the heavy barrel to the basement. Pro Tip 2/3Gravity Involved The action usually happens with the help of gravity pulling it downwards. The coins started to roll down the sloped driveway. Pro Tip 3/3Movement Context Used when describing objects in motion, not when stationary. The toddler watched her toy car roll down the ramp.