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un•der•ground(adv. ˈʌn dərˈgraʊnd; adj., n. -ˌgraʊnd)
subway underground metro
A subway is a path for pedestrians under a busy road.
In some American cities, the subway is a railway system in which electric trains travel below the ground in tunnels. In other cities this is called the metro.
Some speakers of British English also use subway to refer to a British railway system like this, but the London and Glasgow systems are usually called the underground. The London system is also called the tube.
|Noun||1.||underground - a secret group organized to overthrow a government or occupation force|
revolutionary group - a political unit organized to promote revolution
Maquis - the French underground that fought against the German occupation in World War II
|2.||underground - an electric railway operating below the surface of the ground (usually in a city); "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"|
|Adj.||1.||underground - under the level of the ground; "belowground storage areas"; "underground caverns"|
subsurface - beneath the surface; "subsurface materials of the moon"
|2.||underground - conducted with or marked by hidden aims or methods; "clandestine intelligence operations"; "cloak-and-dagger activities behind enemy lines"; "hole-and-corner intrigue"; "secret missions"; "a secret agent"; "secret sales of arms"; "surreptitious mobilization of troops"; "an undercover investigation"; "underground resistance"|
clandestine, cloak-and-dagger, hush-hush, undercover, secret, surreptitious, hole-and-corner, hugger-mugger
covert - secret or hidden; not openly practiced or engaged in or shown or avowed; "covert actions by the CIA"; "covert funding for the rebels"
|Adv.||1.||underground - in or into hiding or secret operation; "the organization was driven underground"|
|2.||underground - beneath the surface of the earth; "water flowing underground"|
moles live underground → los topos viven bajo tierra
it's six feet underground → está a seis pies bajo tierra
an underground car park → un parking souterrain
Moles live underground → Les taupes vivent sous terre.
to be buried underground → être enfoui(e) sous terre
deep underground → à de grandes profondeurs
Is there an underground in Lille? → Est-ce qu'il y a un métro à Lille?
by underground → en métro