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- Dictionaryunderground
adverb
- 1. beneath the surface of the ground: "miners working underground" Similar
adjective
- 1. situated beneath the surface of the ground: "an underground car park" Similar Opposite
noun
- 1. an underground railway, especially the one in London: British "travel chaos on the Underground" Similar
- 2. a group or movement organized secretly to work against an existing regime: "the French underground" Similar
verb
- 1. lay (cables) below ground level: "sections of electricity line had been undergrounded"
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The meaning of UNDERGROUND is beneath the surface of the earth. How to use underground in a sentence.
UNDERGROUND definition: 1. below the surface of the earth; below ground: 2. An underground activity is secret and usually…. Learn more.
noun. the place or region beneath the surface of the ground. ground. an underground space or passage. a secret organization fighting the established government or occupation forces: He fought in the French underground during the Nazi occupation of France.
UNDERGROUND meaning: 1. below the surface of the earth; below ground: 2. An underground activity is secret and usually…. Learn more.
1. occurring, situated, or used below ground level: an underground tunnel; an underground explosion. 2. secret; hidden: underground activities. adv. 3. going below ground level: the tunnel led underground.
Definition of underground adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
conducted with or marked by hidden aims or methods. “ underground resistance”. synonyms: clandestine, cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, secret, surreptitious, undercover. covert. secret or hidden; not openly practiced or engaged in or shown or avowed. noun.
Something that is underground is below the surface of the ground. Solid low-level waste will be disposed of deep underground. The plane hit so hard that one engine was buried 16 feet underground. Synonyms: below ground, in the earth, under the earth, below the surface More Synonyms of underground.
published or produced by political or social radicals or nonconformists: an underground newspaper. avant-garde; experimental: an underground movie. critical of or attacking the established society or system: underground opinion.
underground meaning, definition, what is underground: below the surface of the earth: Learn more.