Beneath the surface of the ground
they drove up the ramp from the underground car park
An underground railway, especially the one in London
The meat of rabbit as food
A US rock group formed in 1965, unsuccessful in the 1960s but extremely influential since their dissolution and probably best known for their first album, The Velvet Underground and Nico (1967), produced in association with Andy Warhol. The backing to the songs of vocalist Lou Reed (1944–2013) displayed the avant-garde influences of classically trained viola player John Cale (b.1942)
North American term for black economy.
(In the US) a secret network for helping slaves escape from the South to the North and Canada in the years before the American Civil War