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

Nebraska’s 2026 Water Quality and Quantity Task Force identified the need to reduce nitrate concentrations in groundwater and protect our water resources for the long term. — Jesse E. Stanley, Washington Post, 9 Oct. 2026

This water often comes from municipal supplies or groundwater—the same sources that provide drinking water to local communities. — Encyclopedia Britannica, 9 Oct. 2026

Before looking at groundwater, the team tested similar sensors to guide breast cancer surgery and to image root systems in plant biology. — Aman Tripathi, Interesting Engineering, 7 Oct. 2026

As groundwater shrinks, those like Jan who can afford the upfront cost keep digging deeper; those who can’t rely on expensive tanker water or hand pumps at mosques. — Laura Paddison, CNN Money, 6 Oct. 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