<p><strong>Noun</strong></p><ul><li>a person or thing that rolls.</li><li>a cylinder, wheel, caster, or the like, upon which something is rolled along.</li><li>a cylindrical body, revolving on a fixed axis, especially one to facilitate the movement of something passed over or around it.</li><li>a cylindrical object upon which something is rolled up: the roller of a window shade.</li><li>a hollow, cylindrical object of plastic, stiff net, or the like, upon which hair is rolled up for setting.</li><li>a cylindrical body for rolling over something to be spread out, leveled, crushed, smoothed, compacted, impressed, inked, etc.</li><li>any of various other revolving cylindrical bodies, as the barrel of a music box.</li><li>Metalworking: a person in charge of a rolling mill.</li><li>a long, swelling wave advancing steadily.</li><li>a rolled bandage.</li></ul>