Antonym: overground. Similar words: undergrowth, undergraduate, ungrounded, ground, undergo, grounds, round and round, background. Meaning: n. 1. a secret group organized to overthrow a government or occupation force 2. an electric railway operating below the surface of the ground (usually in a city). adj. 1. under the level of the ground 2. conducted with or marked by hidden aims or methods. adv. 1. in or into hiding or secret operation 2. beneath the surface of the earth.
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241. Although Patriots capture headlines and boast of a massive underground movement, they are so amorphous that counting them is guesswork.
242. The device exploded in an underground passageway at the Belorusskaya station, officials said.
243. A team of seismic engineers was bought in with equipment normally used in oil exploration to identify unusual objects buried underground.
244. But with the present depressed state of the market, any oil may stay underground.
245. Underground lines have the further disadvantage of poor accessibility.
246. Of special concern are toxic contaminants in water from underground sources.
247. She caught a trolley - bus, and then went on the Metropolitan underground to the Temple stop.
248. an underground resistance movement.
249. By 1997 or thereabouts Athens will have a new airport, plus the best underground railway in Europe.
More similar words: undergrowth, undergraduate, ungrounded, ground, undergo, grounds, round and round, background, playground, founder, common ground, groundwater, groundswell, flounder, undergarment, middle ground, on the grounds of, surrounded, round, under, around, round up, all round, round off, wounded, founded, bounded, under way, thunder, plunder.