if you want me to be more technical I'd have to explain it in terms of economic theory, as opposed to using general terminology
assistant
it is the process of trying to hide the source of money by passing it through a series of accounts and using a number of different tactics
assistant
what are the most popular way people launder money
user
do you mean "money laundering"?  or "the most popular ways of laundering money"?
assistant
how do criminals launder money
user
they could physically transport it, or use companies that will accept the money without questions, or they could deposit it in different bank accounts to hide the source of it.
assistant
what is money laundering
user