underground

Definitions of underground in various dictionaries:

noun - a secret group organized to overthrow a government or occupation force

noun - an electric railway operating below the surface of the ground (usually in a city)

adj - under the level of the ground

adj - conducted with or marked by hidden aims or methods

adv - in or into hiding or secret operation

adv - beneath the surface of the earth

Situated, occurring, or operating below the surface of the earth: underground caverns; underground missile sites.

Hidden or concealed; clandestine: underground resistance to the tyrant.

Of or relating to an organization involved in secret or illegal activity: underground trade in weapons.

Of or relating to an avant-garde movement or its films, publications, and art, usually privately produced and of special appeal and often concerned with social or artistic experiment.

A clandestine, often nationalist, organization fostering or planning hostile activities against, or the overthrow of, a government in power, such as an occupying military government: “an underground of dissident intellectuals” (Kenneth L.

A subway system.

An avant-garde movement or publication.

Below the surface of the earth.

In secret; stealthily.

UNDERGROUND - Underground most commonly refers to: Subterranea (geography), the regions beneath the surface of the Earth Removal of valuable minerals from below t...