Child labour, the employment of children under an age determined by law or custom

Labour union, an association of wage-earners meant to maintain or improve conditions of employment

Childbirth, especially from the start of uterine contractions to delivery

Workforce, the labour pool, the people working in a company, industry, nation or other group

Work of any kind

Wage labour, in which a worker sells their labour and the employer buys it

Unfree labour, slavery or penal labour

Labour movement, the development of a collective organization of working people

Bonded labour (debt bondage) is a system of unfree labour where a person must work to pay off a debt

Labour relations, the study of the relationship between management and workers

Labour economics, the economic field, broadly conceived, encompassing study of Labour (economics)

Labour Party, a political party in various countries

Manual labour, physical work done by people