What is the meaning of labour?

noun

• A social class comprising those who do manual labor or work for wages.
  • usage: "there is a shortage of skilled labor in this field"
  • synonyms: labor, working class, proletariat
• Concluding state of pregnancy; from the onset of contractions to the birth of a child.
  • usage: "she was in labor for six hours"
  • synonyms: parturiency, labor, confinement, lying-in, travail, childbed
• A political party formed in Great Britain in 1900; characterized by the promotion of labor's interests and formerly the socialization of key industries.
  • synonyms: British Labour Party, Labour Party, Labor
• Productive work (especially physical work done for wages. )
  • usage: "his labor did not require a great deal of skill"
  • synonyms: labor, toil

verb

• Work hard.
  • usage: "She was digging away at her math homework"; "Lexicographers drudge all day long"
  • synonyms: labor, toil, fag, travail, grind, drudge, dig, moil
• Strive and make an effort to reach a goal.
  • usage: "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"
  • synonyms: tug, labor, push, drive
• Undergo the efforts of childbirth.
  • synonyms: labor