Search Result for "black economy":
Wordnet 3.0

NOUN (1)

1. a hidden sector of the economy where private cash transactions go unreported;
- Example: "no one knows how large the black economy really is"



WordNet (r) 3.0 (2006):

black economy
    n 1: a hidden sector of the economy where private cash
         transactions go unreported; "no one knows how large the
         black economy really is"