rocker
noun
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a curved support that permits the supported object to rock to and fro
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an ice skate with a curved blade
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a trough that can be rocked back and forthcradle
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a chair mounted on rockersrocking chair
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a teenager or young adult in the 1960s who wore leather jackets and rode motorcycles
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a performer or composer or fan of rock musicrock 'n' roll musician
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an attendant who rocks a child in a cradle