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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.

If there were a statewide measure for commercial businesses, many would probably have to build retention ponds or swales to filter out contaminants before water percolates underground.

From Los Angeles Times • Jun. 5, 2026

According to a CNN report on Sunday, satellite images show that Iran has unblocked 50 out of the 69 tunnel entrances bombed by the US and Israel at 18 underground missile facilities.

From Barron's • Jun. 4, 2026

When he’s working on a new movie, she says, “he’ll ‘Beautiful Mind’ it, these weird Post-its everywhere, and then he’ll go underground for a week and write a near-perfect draft.”

From The Wall Street Journal • Jun. 4, 2026

More than 41,000 people - including almost 4,500 children - sheltered underground in the Kyiv metro overnight, a record number in recent years, the metro company said.

From BBC • Jun. 2, 2026

He tells her the Filipino underground is sending information about the Japanese to General Douglas MacArthur to help plan the liberation of the Philippines.

From "At Last She Stood" by Erin Entrada Kelly




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