What is another word for waterways?
Pronunciation: [wˈɔːtəwˌe͡ɪz] (IPA) 
Waterways are any natural or artificial route by which water flows. Synonyms for waterways include canals, inlets, estuaries, rivers, streams, brooks, creeks, tributaries, channels, straits, and passages. Canals are artificial waterways used for transportation or irrigation. Inlets are the areas where water enters land from the sea. Estuaries are the tidal mouths of rivers, and they are often rich breeding grounds for marine life. Rivers are large natural waterways that flow through landscapes. Streams, brooks, and creeks are smaller natural waterways that often merge to form rivers. Tributaries are smaller rivers that flow into larger ones. Channels and straits are narrow waterways between bodies of land. Passages are narrow waterways for the passage of ships or boats.
