heavy labor; hard work
General term for physically demanding or strenuous work, often used in everyday contexts.
Work at a construction site is heavy labor.
Carrying these packages is hard work.
hard labor (in prison)
Specifically refers to penal labor imposed as part of a prison sentence.
He is serving a sentence of hard labor.
He has worked in heavy labor at the factory for many years.
The court sentenced the defendant to hard labor.
She endures heavy labor every day.
He was sentenced to ten years of hard labor.