B2[I or T, usually+ adv/prep]to (cause something to) move somewhere by turning over and over or from side to side: The vase rolled off the edge of the table and smashed.The dog rolled over onto its back.I rolled the wheel along the side of the road back to the car.Revolving, rotating and spinningB2[I or T, usually+ adv/prep]to move somewhere easily and without sudden movements: A tear rolled down his cheek.A wave of cigarette smoke rolled towards me.The piano's on wheels, so we can roll it into the room.Advancing and moving forward›[I]If an aircraft or a ship rolls, it leans to one side and then to the other because of the wind or waves.AviationTravelling by aircraftMovement through the airSailing and boatingSlanting, sloping, leaning, tilting›[I]If a machine is rolling, it is operating: Just as the television cameras started rolling, it began to pour down with rain.FunctioningPerforming a functionC2[T]If you roll your eyes, you move them so that you are looking up, to show that you consider someone or something stupid or silly: When he suggested they should buy a new car, she rolled her eyes in disbelief.Grimacing and frowning
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