underground river definition, underground river meaning | English dictionary

Collins

underground  


      adj  
      adv  
1    occurring, situated, used, or going below ground level  
an underground tunnel, an underground explosion     
2    secret; hidden  
underground activities     
      n  
3    a space or region below ground level  
4   
a    a movement dedicated to overthrowing a government or occupation forces, as in the European countries occupied by the German army in World War II  
b    (as modifier)  
an underground group     
5    often preceded by: the   an electric passenger railway operated in underground tunnels,   (U.S. and Canadian equivalent)    subway  
6    usually preceded by: the  
a    any avant-garde, experimental, or subversive movement in popular art, films, music, etc.  
b    (as modifier)  
the underground press, underground music     


underground railroad  
      n   often caps   (in the pre-Civil War U.S.) the system established by abolitionists to aid escaping slaves  
Velvet Underground  
      n   the. U.S. avant-garde rock group (1965--70): originally comprised Lou Reed, John Cale (born 1940; bass guitar and viola), Sterling Morrison (1942--95; guitar), and Maureen Tucker (born 1945; drums). Their albums include The Velvet Underground and Nico (1967), White Light/White Heat (1967), and Loaded (1970)  
   See also (Lou)       Reed  
English Collins Dictionary - English Definition & Thesaurus  
Collaborative Dictionary     English Definition
n.
a river in western France, an indirect tributary of la Loire.
Le Loir river begins in the Eure-et-Loir département.

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"Collins English Dictionary 5th Edition first published in 2000 © HarperCollins Publishers 1979, 1986, 1991, 1994, 1998, 2000 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"