"a social class comprising those who do manual labor or work for wages"
"concluding state of pregnancy; from the onset of contractions to the birth of a child"
"a political party formed in Great Britain in 1900; characterized by the promotion of labor's interests and formerly the socialization of key industries"
"the federal department responsible for promoting the working conditions of wage earners in the United States; created in 1913"
"any piece of work that is undertaken or attempted"