419 scam /ˌfɔː wʌn ˈnaɪn skæm $ ˌfɔːr-/ noun [uncountable and countable]
an illegal way of getting money from someone by sending them an email promising that they will make a lot of money if they invest in a business activity which does not really exist Synonym : advance fee fraud

[TahlilGaran] Dictionary of Contemporary English ▲

I. scam¹ /skæm/ noun [countable] informal
a clever but dishonest way to get money:
He got involved in a credit card scam.

[TahlilGaran] Dictionary of Contemporary English ▲

II. scam² verb [transitive] informal
to deceive someone in order to get money from them
—scammer noun [countable]

[TahlilGaran] Dictionary of Contemporary English ▲