Heavy labor
Labour and heavy labor are semantically related. In some cases you can use "Labour" instead a noun phrase "Heavy labor".
Labour
Labour noun - Productive work (especially physical work done for wages).
Cite this Source
Labour and Heavy labor. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/heavy_labor/labour
Heavy labor & Labour. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/heavy_labor/labour>.
Labour or Heavy labor. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/heavy_labor/labour.
Google Ngram Viewer shows how "heavy labor" and "labour" have occurred on timeline