basement
noun
[ ˈbeɪsm(ə)nt ]
• the floor of a building which is partly or entirely below ground level.
• "they went down the stairs into the basement"
Similar:
cellar,
vault,
crypt,
undercroft,
underground room,
catacomb,
sub-basement,
lower ground floor,
garden flat,
dunny,
below stairs,
Origin:
mid 18th century: probably from archaic Dutch basement ‘foundation’, perhaps from Italian basamento ‘column base’.
