Definition of headwaternext
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

Synonyms & Similar Words

Relevance

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of headwater The agreement was made at a time when the region had a smaller population and benefited from wetter years, with much more snow to feed the river’s headwaters in the Rocky Mountains. — Laura Paddison, CNN Money, 21 Aug. 2026 Following an exceedingly warm year that has left the Colorado River’s headwaters in the Rocky Mountains largely snowless, Lake Mead is nearing a record-low level. — Lila Seidman, Los Angeles Times, 16 July 2026 Several sensitive native fish have now settled in, including the speckled dace and the headwater chub. — Shi En Kim, AZCentral.com, 10 July 2026 Its headwaters are in Indian River County, its mouth in the Atlantic near Jacksonville, which is the furthest place Sanders Fish House delivers its wild catch. — Amy Drew Thompson, The Orlando Sentinel, 28 June 2026 See All Example Sentences for headwater
Recent Examples of Synonyms for headwater
Noun
  • Salmon born in its tributaries migrate to the ocean, spend years feeding at sea, then return to spawn, linking villages like Rampart to the same waters where the pollock fleet fishes.
    — Annika Hammerschlag, Los Angeles Times, 13 Oct. 2026
  • The team would be making camp at the confluence of the Barrancas and one of its tributaries.
    — Jordan Salama, New Yorker, 12 Oct. 2026
Noun
  • The kingdom, and its neighbors like the UAE and Qatar, have pitched themselves as not just sources of capital, but as a safe home for trillions in financial assets, data centers, and new industries.
    — Liz Hoffman, semafor.com, 19 Oct. 2026
  • Portioned cups of sauces, dressings have some sort of liquid sitting on the lids from an unknown source.
    — NWA Democrat-Gazette, Arkansas Online, 19 Oct. 2026

Browse Nearby Words

Cite this Entry

“Headwater.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/headwater. Accessed 20 Oct. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!