Pressure is a fundamental physical measure that represents the force exerted per unit area on the surface of an object or on the surface of a container holding a fluid. It quantifies the normal force applied to a surface in contact with another surface or a fluid, indicating the intensity of the force distribution over a given area. The standard unit of pressure in the International System of Units (SI) is the pascal (Pa), which equals one newton per square meter (N/m²). Pressure plays a crucial role in various practical and scientific applications, including meteorology for weather forecasting, engineering for designing containers and pipelines, and medicine for monitoring blood pressure. Understanding and controlling pressure are essential in industrial processes, environmental studies, and everyday activities, making it a vital concept in both theoretical and applied sciences, influencing safety, efficiency, and performance across numerous fields.