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Definitions

underground

[uhn-der-ground, uhn-der-ground] / ˈʌn dərˈgraʊnd, ˈʌn dərˌgraʊnd /




Example Sentences

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Aqua Line is the city's new fully underground metro train connecting the old business district of Cuffe Parade to newer commercial hubs like BKC and the airport terminals in the northern suburbs.

From BBC • Apr. 19, 2026

This soil-powered system is designed to run underground sensors used in precision agriculture and environmental monitoring.

From Science Daily • Apr. 19, 2026

Woods developed methods for routing electrical power underground, helping to establish the foundations of what later became known as the third-rail system.

From The Wall Street Journal • Apr. 18, 2026

How much water does the United States have underground?

From Los Angeles Times • Apr. 15, 2026

And I had greeted one of our group by name, practically admitted a special relationship between us, when the cardinal rule of the underground was .

From "The Hiding Place" by Corrie ten Boom




Vocabulary lists containing underground