1.
underground, below ground
The area beneath the surface of the earth.
2.
basement, underground floor
The floor or floors of a building below street level.
COMMON COMPOUNDS:
- 地下鉄 (subway, underground railway)
- 地下街 (underground shopping area)
- 地下室 (basement room)
- 地下水 (groundwater)
- 地下道 (underground passage)
FLOOR NOTATION:
CONTRAST:
- 地下 (underground) ↔ 地上 (above ground)
CULTURAL NOTE: Japanese cities have extensive 地下街 (underground shopping malls) and 地下鉄 systems, especially in major cities like Tokyo and Osaka.