1
a
: either of two curving pieces of wood or metal on which an object (such as a cradle) rocks
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
Bernard MalamudExamples 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
See All Example Sentences for rocker
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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
See All Example Sentences for rocker
Cite this Entry
“Rocker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rocker. Accessed 4 Nov. 2025.
Copy CitationKids 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
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