(dp, dyp) noun
One misled through credulity; a victim of deception.
—v.t. duped, dup·ing To make a dupe of; impose upon; deceive; trick. See synonyms under DECEIVE. [<OF <L upupa a hoopoe (a bird thought to be stupid)]
—dup′a·bil′i·ty noun
—dup′a·ble adjective
—dup′er noun

(dp, dyp) noun
In motion pictures, a negative film made from the positive, as a source for further positives. [Short for DUPLICATE]