rocker

noun

rock·​er ˈrä-kər 

1

a

: either of two curving pieces of wood or metal on which an object (such as a cradle) rocks

b

: any of various objects (such as a rocking chair or an infant's toy having a seat placed between side pieces) that rock on rockers

c

: any of various objects in the form of a rocker or with parts resembling a rocker (such as a skate with a curved blade)

d(1)

: any of the curved stripes at the lower part of a chevron worn by a noncommissioned officer above the rank of sergeant

(2)

: the curved stripe at the upper part of a chevron worn by a chief petty officer

2

: any of various devices that work with a rocking motion

3

: a rock performer, song, or enthusiast

Phrases

off one's rocker

: in a state marked by extreme confusion or mental unsoundness

… he felt dizzy, slightly off his rocker at this extraordinary assailment of his senses.

—Bernard Malamud

Examples of rocker in a Sentence

Recent Examples on the Web

Hoka Women’s Transport Shoes This cushy shoe is designed with a rocker bottom that pushes you into your next step, putting off foot fatigue for longer. —Jasmine Gomez, Travel + Leisure, 25 Oct. 2025

Gerber was almost unrecognizable as rocker Joan Jett at the 2018 Casamigos Halloween Party. —Catherine Santino, PEOPLE, 25 Oct. 2025

The rockers are added to the lineup of the support acts for AC/DC’s stadium concerts this December in Perth, produced by TEG Van Egmond. —Lars Brandle, Billboard, 24 Oct. 2025

Those who need more range and strength for mixed terrain benefit from the Ausom L2 Max Dual Motor E-scooter, engineered with dual 1000W motors and advanced front and rear rocker-arm suspension. —Matt Emma, USA Today, 24 Oct. 2025

Word History

First Known Use

1760, in the meaning defined at sense 1a

Phrases Containing rocker

• Boston rocker
• hard rocker
• platform rocker
• rocker arm
• rocker panel

Rhymes for rocker

• blocker
• chalker
• cocker
• docker
• hawker
• hocker
• knocker
• locker
• mocker
• ocher
• shocker
• soccer

Kids Definition

rocker

noun

rock·​er ˈräk-ər 

1

a

: a curving piece of wood or metal on which an object (as a cradle) rocks

b

: a structure or device (as a chair) that rocks on rockers

2

: a device that works with a rocking motion

3

: a rock singer, musician, fan, or song