✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

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.
Since at least 2008, scientists have warned that unchecked groundwater pumping for the city and for agriculture was rapidly draining the country’s aquifers. Humberto Basilio, Scientific American, 21 Nov. 2025 The rule proposed on Monday narrows the scope of the protections by excluding groundwater and also would not automatically provide protections to interstate waters. Rachel Frazin, The Hill, 17 Nov. 2025 Cities such as Houston and Dallas are already sinking, due to the depletion of groundwater. Jill Lepore, New Yorker, 13 Nov. 2025 These measures would need to stretch backup groundwater supplies until new water sources come online. Austin Corona, AZCentral.com, 12 Nov. 2025 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 27 Nov. 2025.

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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