I.underground ADJ attr [Am ˈəndərˌɡraʊnd, Brit ˈʌndəɡraʊnd]
1. underground cave/stream/parking:
2. underground newspaper/organization:
3. underground (avant-garde):
II.underground ADV [Am ˌəndərˈɡraʊnd, Brit ʌndəˈɡraʊnd]
1. underground (under the earth):
2. underground (in, into hiding):
III.underground N U or C [Am ˈəndərˌɡraʊnd, Brit ˈʌndəɡraʊnd]
1. underground (also) Brit TRANSP:
- metro m