Definition of underground

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Underground (n.) The place or space beneath the surface of the ground; subterranean space.

Lern More About Underground

Countermine :: Countermine (n.) An underground gallery excavated to intercept and destroy the mining of an enemy.
Pipe Laying :: Pipe laying () The laying of conducting pipes underground, as for water, gas, etc..
Underdrain :: Underdrain (n.) An underground drain or trench with openings through which the water may percolate from the soil or ground above.
Spawn :: Spawn (v. t.) The buds or branches produced from underground stems.
Heterocarpism :: Heterocarpism (n.) The power of producing two kinds of reproductive bodies, as in Amphicarpaea, in which besides the usual pods, there are others underground..
Roofing :: Roofing (n.) The wedging, as of a horse or car, against the top of an underground passage..
Rolley :: Rolley (n.) A small wagon used for the underground work of a mine.
Underditch :: Underditch (v. t.) To dig an underground ditches in, so as to drain the surface; to underdrain; as, to underditch a field or a farm..
Root :: Root (n.) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion, or the sweet flag..
Aerial :: Aerial (a.) Growing, forming, or existing in the air, as opposed to growing or existing in earth or water, or underground; as, aerial rootlets, aerial plants..
Rootstock :: Rootstock (n.) A perennial underground stem, producing leafly s/ems or flower stems from year to year; a rhizome..
Mole :: Mole (n.) A plow of peculiar construction, for forming underground drains..
Earthpea :: Earthpea (n.) A species of pea (Amphicarpaea monoica). It is a climbing leguminous plant, with hairy underground pods..
Back :: Back (n.) The upper part of a lode, or the roof of a horizontal underground passage..
Mill :: Mill (n.) A passage underground through which ore is shot.
Underground :: Underground (adv.) Beneath the surface of the earth.
Underground :: Underground (n.) The place or space beneath the surface of the ground; subterranean space.
Core :: Core (n.) A miner's underground working time or shift.
Underground :: Underground (a.) Being below the surface of the ground; as, an underground story or apartment..
Underground :: Underground (a.) Done or occurring out of sight; secret.
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