What is another word for water passage?
Pronunciation: [wˈɔːtə pˈasɪd͡ʒ] (IPA) 
Water passage refers to any intended route for water to flow through. It can be a man-made structure or a naturally occurring channel. Synonyms for water passage include waterway, canal, channel, conduit, aqueduct, ditch, flume and watercourse. Waterways are typically navigable bodies of water such as rivers or seas, while canals are artificial waterways typically used for transportation. Conduits and aqueducts are man-made structures used to transport water from one location to another, while ditches and flumes are smaller channels typically used for irrigation or drainage. A watercourse is any channel through which water flows, whether natural or man-made, serving as a vital component to our daily lives.
