D defs.my
Entry 2 senses Webster, 1913

black market

· IPA
01 n. the illicit buying and selling of goods, in violation of price controls, rationing, tax laws, prohibition of sale, etc.
  1. 1.
    the illicit buying and selling of goods, in violation of price controls, rationing, tax laws, prohibition of sale, etc.
  2. 2.
    a place where such illegal commerce is conducted, or the entire system of such illicit commerce considered as a whole; as, the black market accounts for twenty percent of the Ukrainian economy.