noun
a person who performs manual labor, especially in an industrial job
adjective
describing the type of work or job that involves manual labor
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The blue collar worker demonstrated a strong work ethic and dedication to their job.
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My neighbor is a blue collar worker who works long hours in construction.
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My uncle is a blue collar worker, always getting his hands dirty on the job.
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The blue collar worker's sweat and toil built the foundation of our society.