underground
adjective
- occurring, working, placed, used, etc. beneath the surface of the earth
- secret; hidden; undercover
- designating or of newspapers, films, music, etc. that are unconventional, experimental, radical, etc.
adverb
- beneath the surface of the earth
- in or into secrecy or hiding; so as to be undercover; surreptitiously
noun
- the entire region beneath the surface of the earth
- an underground space or passage
- a secret movement organized in a country to oppose or overthrow the government in power or enemy forces of occupation
- an underground movement in media, films, music, etc.
- Brit. a subway
See underground in American Heritage Dictionary 4
(ŭnˈdər-groundˌ)
adjective- Situated, occurring, or operating below the surface of the earth: underground caverns; underground missile sites.
a. Hidden or concealed; clandestine: underground resistance to the tyrant.
b. 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.
noun- 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. Woodward).
- Chiefly British A subway system.
- An avant-garde movement or publication.
adverb (ŭnˌdər-groundˈ)- Below the surface of the earth.
- In secret; stealthily.
transitive verb un·der·ground·ed,
un·der·ground·ing,
un·der·grounds To situate under the ground: workers undergrounding telephone lines.
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