as in tributaries
a stream that flows into a larger body of water
the Nipigon and the St. Louis rivers are affluents of Lake Superior
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Recent Examples of Synonyms for affluents
tributaries
Noun
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The property features over a mile of frontage along Fall River and controls two of the river’s primary spring-fed tributaries — Spring Creek and Lava Creek, according to Hall and Hall.
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For more precise information, Three Rivers Waterkeeper, a nonprofit that helps protect and restore the water quality of the Allegheny, Monongahela and Ohio rivers and their surrounding watersheds, samples the rivers and tributaries weekly each summer as part of its Swim Guide program.
Cite this Entry
“Affluents.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/affluents. Accessed 28 Jun. 2026.
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