as in underground
being, situated, or operating beneath the surface of the earth a subterranean bunker that supposedly could withstand even an atomic blast

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of subterranean Where subterranean heat sources naturally occur close to the surface, easily accessible and close enough to a relevant power grid for economically viable transmission, geothermal becomes a rare example of totally reliable, round-the-clock green power generation. New Atlas, 23 Feb. 2025 Innies exist only on a subterranean floor in the headquarters of Lumon Industries, a company that splits some employees’ consciousness into a work self and a not-work self. Alison Herman, Variety, 7 Jan. 2025 The broken subterranean pipe is designed to provide pressurized water to the depot’s thousands of sprinkler heads in the event of a fire. Evan Simko-Bednarski, New York Daily News, 15 Feb. 2025 Off the coast of Japan, thousands of feet below the surface, the seafloor explodes with heat. Cracks and vents in the rocky sediment allow boiling seawater heated by subterranean magma to shoot back up into the sea, reaching temperatures of more than 700 degrees Fahrenheit. Irene Wright, Miami Herald, 10 Feb. 2025 See All Example Sentences for subterranean

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“Subterranean.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/subterranean. Accessed 13 Mar. 2025.

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