<p><strong>Noun</strong></p><ul><li>Also called runner.</li><li>one of the curved pieces on which a cradle or a rocking chair rocks.</li><li>rocking chair.</li><li>a performer or fan of rock-'n'-roll music.</li><li>a rock-'n'-roll song: She sang a ballad and followed that with two of her well-known rockers.</li><li>any of various devices that operate with a rocking motion.</li><li>Graphic Arts: a small steel plate with one curved and toothed edge for roughening a copperplate to make a mezzotint.</li><li>Mining: cradle (def 13).</li><li>an ice skate that has a curved blade.</li></ul>