as in tributary
usually headwaters plural
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
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Recent Examples of headwater
The mine would restrict access to its tribal members, on top of creating heightened risks of mine runoff entering into the headwaters and decreasing dwindling fish populations, according to the lawsuit.
—
Kevin Fixler
september 20, Idaho Statesman, 20 Sep. 2025
It could be said that more people have stood atop the headwaters of the Flint River than that of any other one on earth.
—David Hanson, Southern Living, 13 Sep. 2025
Enjoy hiking trails with scenic overlooks and opportunities for paddling ⛵ and fishing near the river’s headwaters.
—Melissa Oyler, Charlotte Observer, 5 Sep. 2025
The heaviest rain is expected to occur across the headwaters of Peters Creek and Cache Creek.
—Anna Skinner, MSNBC Newsweek, 1 Sep. 2025
See All Example Sentences for headwater
Kevin Fixler
september 20, Idaho Statesman, 20 Sep. 2025
It could be said that more people have stood atop the headwaters of the Flint River than that of any other one on earth.
—David Hanson, Southern Living, 13 Sep. 2025
Enjoy hiking trails with scenic overlooks and opportunities for paddling ⛵ and fishing near the river’s headwaters.
—Melissa Oyler, Charlotte Observer, 5 Sep. 2025
The heaviest rain is expected to occur across the headwaters of Peters Creek and Cache Creek.
—Anna Skinner, MSNBC Newsweek, 1 Sep. 2025
See All Example Sentences for headwater
Recent Examples of Synonyms for headwater
Noun
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This practice had its own history, another tributary to the overshoot conjuncture that weighed heavily on its future course.—
Literary Hub,
Literary Hub,
5 Nov. 2025
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To date, this and other restoration efforts have helped to restore oyster reefs across nearly 1,800 acres in ten different tributaries to the bay.—
JSTOR Daily,
JSTOR Daily,
31 Oct. 2025
Noun
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New president Wade Rousse, hired to the job on Tuesday, has decided to promote interim athletic director Verge Ausberry to the full-time role, a school source confirmed to The Athletic.—
Chris Vannini,
New York Times,
5 Nov. 2025
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Energy transition, by contrast, typically refers to the transfer from one energy source to another.—
Sam Meredith,Dan Murphy,
CNBC,
5 Nov. 2025
Cite this Entry
“Headwater.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/headwater. Accessed 10 Nov. 2025.
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