A person who has been deceived.
A duplicate of a photographic image.
fool or hoax
"The immigrant was duped because he trusted everyone"
"You can't fool me!"
To swindle, deceive, or trick.
To duplicate.
The word dupe comes from the French verb duper, which originally meant "to hoodwink." This term is an altered form of duppe, referring to the hoopoe bird, likely chosen because its crest resembles a hat used to deceive.