What is another word for tributary?
Pronunciation: [tɹˈɪbjuːtəɹi] (IPA) 
Tributary refers to a small river or stream that flows into a larger river or body of water. Depending on the context, there are several suitable synonyms for tributary. Firstly, branch refers to a smaller stream or river that feeds into a larger one. Second, a feeder stream refers to a small stream or river that supplies water to a larger river or lake. Third, affluent is another suitable synonym which refers to a stream or river that contributes to a larger body of water. Fourth, inlet refers to a narrow strip of water that flows into a larger body of water. Finally, a streamlet is a small stream that feeds into a larger river or body of water.
