1. working hard, especially at physical work
Usage: present participle of labour
2. struggling with difficulty to do something
Usage: present participle of labour

1. belonging to or characteristic of the working class
Usage: British spelling

Examples

• The construction workers were labouring in the hot sun all day.
• She was labouring over her math homework for hours.
• He came from a labouring family in the industrial north.
• The old engine was labouring up the steep hill.
• They spent the morning labouring in the garden.
• The labouring classes demanded better working conditions.
• The ship was labouring against the strong winds.