A professional social worker or counselor who helps individual clients or families with problems like poverty, abuse, or health issues.
Compound word from 'case' (an individual situation needing attention) and 'worker' (one who works). Became common in the 20th century with the professionalization of social services.
Caseworkers are often called 'invisible heroes' because they navigate complex systems—one person might help coordinate medical care, housing, legal issues, and childcare all at once.
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