definition of
roll

[1] #1 roll v. [turn over] move by turning over or rotating; "The child rolled down the hill"; "turn over on your left side". wn

[2] #2 roll v. [wheel] move along on or as if on wheels or a wheeled vehicle; "The President's convoy rolled past the crowds". wn

[3] #3 roll v. [undulate] occur in soft rounded shapes; "The hills rolled past". wn

[4] #4 roll v. [roll out] flatten or spread with a roller; "roll out the paper". wn

[5] #5 roll n. [axial rotation, axial motion] rotary motion of an object around its own axis; "wheels in axial rotation". wn