- The definition of a dupe is a person who has been tricked or fooled.
A person who fell for a lie is an example of a dupe.
- To dupe is to trick or deceive someone.
When you tell someone a lie, this is an example of a time when you dupe the person.
dupe definition by Webster's New World
Origin: French ; from Old French duppe, cant alteration of Classical Latin upupa, hoopoe, stupid bird
dupe definition by American Heritage Dictionary
- An easily deceived person.
- A person who functions as the tool of another person or power.
Origin: French, from Old French, probably alteration of huppe, hoopoe (from the bird's stupid appearance); see hoopoe.
- dupˌa·bilˈi·ty noun
- dupˈa·ble adjective
- dupˈer noun