The term 'Waste Channel' refers to a system of pipes and drains that are used to transport waste away from buildings and other areas. The two crossword solutions for this term are 'DRAIN' and 'SEWER'. A DRAIN is an opening in the ground or in a wall that allows water to flow away from a building, while a SEWER is a large underground pipe that carries wastewater away from a city or town. Together, these two solutions form a waste channel, which is an important part of any city's infrastructure.