Solar water disinfection, also known as SODIS, is a simple and cost-effective method to purify water using the power of the sun. However, there are several other synonyms used to describe this same process. For example, it can also be referred to as "sun water treatment," "solar water purification," or "solar water sterilization." Other terms that are commonly used include "UV water disinfection," "sunlight disinfection," and "solar disinfection." Regardless of the term used, the process involves placing water in clear plastic bottles and exposing them to sunlight for several hours, which kills harmful bacteria and viruses. With clean and safe water being a basic human need, SODIS remains an important solution for communities around the world.