This meaning refers to dishonestly misleading someone so they accept false information or take an unwanted action.
The scam duped hundreds of customers.
He was duped into revealing his password.
This meaning refers to someone manipulated, misled, or exploited by another person.
He realized that he had been used as a dupe.
The fraudster treated every customer as a potential dupe.
This modern informal meaning refers to an affordable item that closely resembles a premium or branded product without necessarily being counterfeit.
This perfume is a popular dupe for a luxury fragrance.
The store sells a cheaper dupe of the designer bag.
In gaming and computing slang, this meaning refers to duplicating virtual objects, data, or records, often through an error or exploit.
The exploit allowed players to dupe rare items.
The bug duped inventory records.
