Washing powder is a type of detergent used to clean clothes and fabrics. It is usually a white powder made from a combination of chemicals, surfactants, and enzymes. The term 'washing powder' is often used interchangeably with the term 'SOAP, ' which is a four-letter word. SOAP is a traditional cleaning agent made from fats or oils combined with an alkali, such as sodium hydroxide or potassium hydroxide. SOAP has been used for centuries to clean clothes and fabrics, but modern washing powders are more effective and efficient.