groundwater

noun

ground·​wa·​ter ˈgrau̇nd-ˌwȯ-tər 

-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

Since local rain accounts for 40% of the region’s drinking water supply, folks from Los Angeles County Public Works were busy making sure it got captured and sunk into reservoirs and groundwater basins as non-rainy day storage. —Steve Scauzillo, Daily News, 24 Apr. 2026

The primary sources of nitrates in groundwater are from livestock manure and other nitrogen-rich fertilizers placed on crops by farmers and ranchers, experts said. —Sandee Lamotte, CNN Money, 23 Apr. 2026

The Florida Panhandle is in a D4 Zone, the highest zone, which historically means rapid groundwater decline. —Kathryn Prociv, NBC news, 23 Apr. 2026

Barona is pursuing the improvements to enhance water reliability, reduce dependence on groundwater and support the long-term sustainability of the Barona community. —Julie Gallant, San Diego Union-Tribune, 23 Apr. 2026

Word History

First Known Use

circa 1889, in the meaning defined above

Rhymes for groundwater

• backwater
• bathwater
• blackwater
• breakwater
• deepwater
• edgewater
• feedwater
• floodwater
• freshwater
• granddaughter
• headwater
• manslaughter

Kids Definition

groundwater

noun

ground·​wa·​ter ˈgrau̇n-ˌdwȯt-ər 

-ˌdwät-

: water within the earth that supplies wells and springs