underground (a) (activity) | clandestino (a) (activity) |
underground (a) (location) | subterráneo (a) (location) |
underground (o) (activity) | clandestino (o) (activity) |
underground (o) (activity) | ilegal (o) (activity) |
underground (o) (position) | debajo de tierra (o) (position) |
underground level | sótano |