headwaters

plural of headwater
as in tributary
the beginning part of a stream the first exploration of the Missouri River from its mouth to its headwaters was made by Meriwether Lewis and William Clark in the early 1800s

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Example Sentences

Recent Examples of Synonyms for headwaters
Noun
  • Best of all was hitting 4-iron off the pine straw on the par-5 13th that narrowly cleared the tributary of Rae’s Creek and set up a 10-foot eagle.
    Doug Ferguson, Chicago Tribune, 12 Apr. 2025
  • In November, the U.S. and Mexico signed the Minute 331 agreement, which focused on improving the reliability of Rio Grande water deliveries — in part by suggesting two alternative tributaries through which the transfers could occur.
    Sharon Udasin, The Hill, 29 Mar. 2025
Noun
  • Yerevan has since sought to diversify its defense sources, reducing arms imports from Russia to as low as 10 percent by 2024.
    Paul Iddon, Forbes.com, 8 June 2025
  • Climate change and shifting food sources are also causing species-wide population declines, the experts said.
    Julia Jacobo, ABC News, 8 June 2025
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“Headwaters.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/headwaters. Accessed 13 Jun. 2025.

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