groundwater

noun

ground·​wa·​ter ˈgrau̇nd-ˌwȯ-tər How to pronounce groundwater (audio)
-ˌwä-
: water within the earth especially that supplies wells and springs

Examples of groundwater in a Sentence

There were concerns about contaminated groundwater.
Recent Examples on the Web
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.
The decision also followed a nearly $16 million fine issued by the state environmental department to the DOE for allegedly contaminating groundwater by failing to manage legacy radioactive waste. Ariel Cohen, Forbes.com, 30 June 2026 Even after the recent completion of a 70-mile, $400 million pipeline to bring water from Kaw Lake, Enid will continue to rely heavily on its groundwater wells. Nick Bowlin, ProPublica, 30 June 2026 Without regulations in place, advocates and local officials worry data centers will strain the electrical grid and deplete Lake Michigan and rural well water faster than rain, runoff and groundwater can replenish them. Jack O'Connor, Chicago Tribune, 29 June 2026 The lab’s Environmental Restoration Department had been working to remediate the site and clean groundwater that had been contaminated with nitrates, a nitrogen compound found in bombs. Chase Hunter, Mercury News, 28 June 2026 See All Example Sentences for groundwater

Word History

First Known Use

circa 1889, in the meaning defined above

Time Traveler
The first known use of groundwater was circa 1889

Browse Nearby Words

Cite this Entry

“Groundwater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/groundwater. Accessed 5 Jul. 2026.

Kids Definition

groundwater

noun
ground·​wa·​ter ˈgrau̇n-ˌdwȯt-ər How to pronounce groundwater (audio)
-ˌdwät-
: water within the earth that supplies wells and springs

More from Merriam-Webster on groundwater

Love words? Need even more definitions?

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

More from Merriam-Webster