What is the meaning of Rocker?

A curved piece of wood attached to the bottom of a rocking chair or cradle that enables it to rock back and forth.

A rocking chair.

The lengthwise curvature of a surfboard. (More rocker is a more curved board.)

The breve below as in ḫ.

Someone passionate about rock music.

A musician who plays rock music.

A rock music song.

One who rocks something.

A member of a British subculture of the 1960s, opposed to the mods, who dressed in black leather and were interested in 1950s music.

Any implement or machine working with a rocking motion, such as a trough mounted on rockers for separating gold dust from gravel, etc., by agitation in water.

A tool with small teeth that roughens a metal plate to produce tonality in mezzotints.

A rocking horse.

A rocker board.

A skate with a curved blade, somewhat resembling in shape the rocker of a cradle.

A kind of electrical switch with a spring-loaded actuator.

A rock shaft.

A curved line accompanying the chevrons that denote rank, qualifying the rank with a grade.

An outlaw biker

a rocker (rock musician or rock fan)

a rocker (rock song)

to rock (play or enjoy rock music)

rock music musician or fan

rocker (rock musician)

Source: wiktionary.org