Using slaves to do work / (figuratively) The employment of workers for meagre pay to do tedious tasks.

(Canada, British spelling) Alternative spelling of labor union

The collective group of people who are available for employment, whether currently employed or unemployed (though sometimes only those unemployed people who are seeking work are included).

(British spelling, Canada) Alternative spelling of manual labor: physically demanding work done by hand.

(economics) The separation of work into different categories or tasks; each category or task being carried out by different groups of workers.

Labour required to be provided to repay a debt, considered tantamount to slavery.

plural of bonded labour

plural of labour camp

A type of prison where prisoners are obliged to do forced labour, usually outdoors.

UK spelling of labor of love