black market
noun /ˌblæk ˈmɑːkɪt/
/ˌblæk ˈmɑːrkɪt/
[usually singular]- an illegal form of trade in which foreign money, or goods that are difficult to obtain, are bought and sold
- on the black market to buy or sell goods on the black market
- You could buy anything you needed on the black market.
- black market in something a flourishing black market in foreign currency
- During the war, there was a thriving black market in food.
Oxford Collocations Dictionaryadjective- thriving
- lucrative
- activity
- trade
- on the black market
- black market in