Labor refers to the physical or mental effort exerted by individuals in the production of goods or services. It involves the work performed by workers or employees to contribute to the overall production process. Labor can be categorized into different types, such as skilled or unskilled, manual or intellectual, and can be compensated through wages, salaries, or other forms of remuneration. It is a fundamental factor of production and plays a crucial role in economic activities and the functioning of industries and businesses.