Definition of belowgroundnext
as in underground
being, situated, or operating beneath the surface of the earth a vast belowground network of tunnels

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Example Sentences

Recent Examples of Synonyms for belowground
Adjective
  • Degrading Iran’s war machine The larger munitions would have likely been used to penetrate underground facilities, destroy missile launch bunkers, and collapse tunnels or storage depots.
    Christopher McFadden, Interesting Engineering, 8 Mar. 2026
  • These natural gems give a glimpse into the Floridan aquifer, a system of porous limestone that forms underground caves and rivers, pushing water up through vents and ultimately flowing into the faucets of millions of Sunshine State residents.
    Patrick Connolly, The Orlando Sentinel, 7 Mar. 2026
Adjective
  • The spa In the subterranean 6,800 square-foot space, therapists give deep-scrub facials in black Italian-marble treatment rooms.
    Condé Nast, Condé Nast Traveler, 7 Mar. 2026
  • The professional-use treatments are effective against Formosan termites at the same concentration levels used for native subterranean termites.
    Arricca Elin SanSone, Southern Living, 6 Mar. 2026
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.

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“Belowground.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/belowground. Accessed 13 Mar. 2026.

Last Updated: - Updated example sentences
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