money laundering
US /ˈmʌn.i ˈlɔːn.dər.ɪŋ/
UK /ˈmʌn.i ˈlɔːn.dər.ɪŋ/

1.
the concealment of the origins of illegally obtained money, typically by means of transfers involving foreign banks or legitimate businesses
:
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The criminal organization was involved in large-scale money laundering.
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New regulations aim to combat international money laundering.