The phrase "warm water" refers to water that has been heated to a temperature that is comfortable for human use, typically between 68°F and 100°F (20°C - 37.8°C). It can be used in various contexts such as taking a warm bath or shower, washing dishes with warm water, or using warm water to clean wounds. The term "warm" is often used interchangeably with the terms "lukewarm," "tepid," or "moderate."