The Oxford Thesaurus An A-Z Dictionary of Synonyms - labourn.

1) toil, (hard) work, travail, exertion, effort, laboriousness, strain, drudgery, pains, industry, slavery, donkey-work, Colloq sweat, grind, elbow-grease, Brit swot: They know the labour involved in building a road. 2) employees, workers, wage-earners, labourers: A meeting between labour and management is scheduled for today. 3) effort, task, job, chore, undertaking: Raising funds for the museum was a labour of love. 4) travail, childbirth, parturition, labour pains, contractions, delivery: She went into labour at midnight, and the twins were born just after four. --v. 5) work, toil, travail, drudge, strain, strive, struggle, slave, Colloq sweat, grind, Brit peg away (at) , swot: We laboured hard to get where we are today. 6) dwell on, overdo, overemphasize, harp on, overstress, strain, Colloq belabour: I heard you the first time, so don't labour the point. 7) labour under. be burdened or troubled or distressed by, be deluded or deceived by, be disadvantaged by, suffer, endure: He is labouring under a misapprehension. She labours under the impression that she will not be affected by a lack of education.