rocker

One that rocks, as.

A rocking chair.

A rocking horse.

One of the two curved pieces upon which a cradle, rocking chair, or similar device rocks.

A cradle used for washing or panning ores.

A small curved blade with a toothed edge used in mezzotint engraving to roughen the surface of the metal plate.

An object having a curved form, as the keel of a ship or a skate blade sharpened in a curve.

A curved stripe at the bottom part of a chevron worn by noncommissioned officers above the rank of sergeant.

A rock song, singer, or musician.