Definition of "Labor" :
noun: productive work (especially physical work done for wages)
"His labor did not require a great deal of skill."
noun: any piece of work that is undertaken or attempted
noun: the federal department responsible for promoting the working conditions of wage earners in the United States; created in 1913
noun: a social class comprising those who do manual labor or work for wages
"There is a shortage of skilled labor in this field."
noun: a political party formed in Great Britain in 1900; characterized by the promotion of labor's interests and formerly the socialization of key industries
noun: an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement
noun: concluding state of pregnancy; from the onset of contractions to the birth of a child
"She was in labor for six hours."
verb: undergo the efforts of childbirth
verb: strive and make an effort to reach a goal
verb: work hard