The term "drainage area" refers to the region that contributes water to a particular watercourse or watershed. It is often used interchangeably with words like catchment, basin and watershed. Catchment areas are often used to describe areas of land where the drainage basins of small streams feed into larger rivers or lakes. Basin is also used for the same purpose and can signify water flowing in different directions. Watershed is used as a synonym for drainage area but also symbolizes the natural boundary separating two drainage basins. Regardless of the term used, a drainage area is important in understanding the natural hydrological processes and managing water resources in a particular region.