waterwayPronunciation: /ˈwɔːtəweɪ/Translate waterway | into French | into German | into Italian | into Spanish Definition of waterway noun 1a river, canal, or other route for travel by water: the canal was a very successful commercial waterway 2a channel at the outer edge of a deck of a boat that allows water to run off. waterway in other Oxford dictionaries Definition of waterway in the US English dictionary