Labour is the work that people do to earn money. People work in all different kinds of jobs, like being a teacher, doctor, or firefighter. People get paid for the work they do, and the money they earn is called a salary. The amount of money people get paid for their work usually depends on the type of job they do. For example, people who do high-skilled jobs like doctors usually get paid a lot more money than people who do low-skilled jobs, like a cleaner. In economics, labour is also used to measure how much people are contributing to the economy - this helps governments understand how much work is being produced, how much money people are making, and how to improve the economy.