black-market has definitions from the field of law
1
[ adjective ] distributed or sold illicitly

Examples

"the black economy pays no taxes"

Related terms

illegal

2
[ adjective ] (law) distributed or sold illicitly

Examples

"the black economy pays no taxes

Used in print

(William Maxwell, The Chateau....)

They passed the marmalade , the bread , the black-market butter , back_and_forth .

Related terms

illegal

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