Rotating on an axis, or moving along a surface by rotation; turning over and over as if on an axis or a pivot; as, a rolling wheel or ball.

Moving on wheels or rollers, or as if on wheels or rollers; as, a rolling chair.

The reduction of the cross-sectional area of metal stock by its passage between rotating rolls.

propelling something on wheels

moving in surges and billows and rolls; "billowing smoke from burning houses"; "the rolling fog"; "the rolling sea"; "the tumbling water of the rapids"

A yacht hull's sideways movement about the fore-and-aft axis.

Rolling is a combination of rotation (of a more or less cylindrically or spherically symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that the two are in contact with each other without sliding. This is achieved by a rotational speed at the cylinder or circle of contact which is equal to the translational speed. Rolling of a round object typically requires less energy than sliding, therefore such an object will more easily move, if it experiences a force with a component along the surface, for instance gravity on a tilted surface; wind; pushing; pulling; an engine.