Sungai is the Malay and Indonesian word for "river." It refers to a natural watercourse, typically flowing towards an ocean, sea, or lake. Rivers are essential for ecosystems, providing habitats for various species and serving as a source of freshwater for human consumption, agriculture, and industry. In many cultures, including those in Southeast Asia, rivers hold significant cultural and spiritual importance. They often serve as transportation routes and are vital for trade and commerce. Additionally, rivers like the Sungai Mekong and Sungai Amazon are known for their biodiversity and play crucial roles in the environment.