casework: close sociological study of a maladjusted person or family for diagnosis and treatment
welfare work: an organized activity to improve the condition of disadvantaged people in society
gypsy: a member of a people with dark skin and hair who speak Romany and who traditionally live by seasonal work and fortunetelling; they are believed to have originated in northern India but now are living on all continents (but mostly in Europe, North Africa, and North America)