: a group of people who secretly work to oppose or overthrow a government
Examples of the underground in a Sentence
Recent Examples on the Web
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.
Hot rock stores heat pressure The joint study will examine how the underground resource can be connected to a surface power system.—
Neetika Walter,
Interesting Engineering,
26 Aug. 2026 Disaster recovery experts warn contamination of city water sources or the underground lines that feed out from them are common after wildfires.—
Kirk Siegler,
NPR,
25 Aug. 2026 Detectives believe many of the underground scavengers caught on camera are migrants searching for anything of value in the sewer system.—ABC News,
25 Aug. 2026 Remaining construction includes a major upgrade to the underground pumping system to better handle rainwater.—
Caroline Foreback,
CBS News,
25 Aug. 2026 See All Example Sentences for the underground