1.
underground, subterranean, in the ground
Within or beneath the surface of the ground. Used to describe things that are located, buried, or happening below the earth's surface. Often appears as a modifier with の.
Usage
地中 specifically means within the earth, as opposed to 地下 which often refers to underground spaces designed for human use (basements, subways). 地中 is more natural when talking about things physically embedded in the soil or rock.
Common collocations
Related Words
Compare:
地下 (underground (spaces))
Related:
地表 (earth's surface)
Compare:
地底 (underground)
Compare:
土中 (in the soil)