Light wash is a type of laundry process that uses a low water temperature and a gentle detergent to clean clothes. It is often used for delicate fabrics such as silk, wool, and cashmere. The term 'light wash' is often used interchangeably with the term 'RINSE, ' which is a five-letter word that is the solution to the crossword puzzle. RINSE is a process that involves running cold water through the fabric to remove any remaining detergent or dirt.