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Definitions

underground

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




Example Sentences

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One fix that “Wedges” leaned especially hard on was carbon capture and storage, a technology that promised to grab carbon pollution from smokestacks and other sources and trap it forever underground.

From Salon • Jun. 26, 2026

Operating at the former Homestake Gold Mine site, the Sanford Underground Research Facility is America’s deepest underground science lab.

From The Wall Street Journal • Jun. 25, 2026

Prosecutors said the Lachman fire smoldered underground for a week before exploding into the deadly Palisades fire.

From Los Angeles Times • Jun. 25, 2026

"No drones or paparazzi can get in or out, and Taylor, Travis and guests can enter underground from blocks away with no chance of getting photographed," Furber said.

From BBC • Jun. 25, 2026

From the top of each tower spewed scalding-hot water that had bubbled up from deep underground.

From "The Wild Robot Protects" by Peter Brown




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