LEARNit Dictionary
the black economy
noun
/ðə ˌblæk ɪˈkɒnəmi/
UK
/ðə ˌblæk ɪˈkɑːnəmi/
US
1
business activity or work that is done without the knowledge of the government or other officials so that people avoid paying tax on the money they earn
اقتصاد پنهان, اقتصاد زیرزمینی, اقتصاد غیررسمی