Noun

• S: (n) labor, labour, working class, proletariat (a social class comprising those who do manual labor or work for wages) "there is a shortage of skilled labor in this field"
• S: (n) labor, labour, toil (productive work (especially physical work done for wages)) "his labor did not require a great deal of skill"
• S: (n) parturiency, labor, labour, confinement, lying-in, travail, childbed (concluding state of pregnancy; from the onset of contractions to the birth of a child) "she was in labor for six hours"
• S: (n) labor movement, trade union movement, labor (an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement)
• S: (n) British Labour Party, Labour Party, Labour, Labor (a political party formed in Great Britain in 1900; characterized by the promotion of labor's interests and formerly the socialization of key industries)
• S: (n) Department of Labor, Labor Department, Labor, DoL (the federal department responsible for promoting the working conditions of wage earners in the United States; created in 1913)
• S: (n) undertaking, project, task, labor (any piece of work that is undertaken or attempted) "he prepared for great undertakings"

Verb

• S: (v) tug, labor, labour, push, drive (strive and make an effort to reach a goal) "She tugged for years to make a decent living"; "We have to push a little to make the deadline!"; "She is driving away at her doctoral thesis"
• S: (v) labor, labour, toil, fag, travail, grind, drudge, dig, moil (work hard) "She was digging away at her math homework"; "Lexicographers drudge all day long"
• S: (v) labor, labour (undergo the efforts of childbirth)