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Definitions

underground

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




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Then it would need to be mechanically excavated from deep underground in the middle of hostile territory and could weigh 1,000 pounds.

From Salon • Apr. 3, 2026

Kone does much of its research underground in Lohja, Finland, in a facility sunk deep into a working limestone mine that lets engineers test travel distances of more than three football fields.

From The Wall Street Journal • Apr. 2, 2026

“We think the inventory will grow as drilling continues in earnest, especially at the underground deposits,” Hissey says.

From The Wall Street Journal • Mar. 30, 2026

The K Line northern extension underground light rail project would link up with four major rail lines and up the number of K Line riders up to 100,000 a day.

From Los Angeles Times • Mar. 26, 2026

The doors snap shut, and with no warning, the elevator violently lurches deeper underground.

From "The Manifestor Prophecy" by Angie Thomas