Synonyms for Dupe:

n.

prey, sitting duck, sitting target. entrap, fall guy, gudgeon, lamb, mark, mug, pigeon, pushover, sap, string along, wise, rip off. instrument, over, pawn, stooge, tool. bamboozle, beguile, bluff, cozen, double cross, four flush, honest, humbug, lead astray, play false, take for a ride, put something over on. dupe (noun)
April Fool, befool, fool, gull, laughingstock, put one across, put one over, slang, victim, put on, take in, COD.
fall guy (noun)
patsy, sitting duck.
flatterer (noun)
brown-nose, fawner, flatterer, groveler, jackal, lackey, puppet, sycophant, toady, back-scratcher, boot-licker.
fool (noun)
laughingstock, victimize, study at cheat.
innocent (noun)
lamb.
laughingstock (noun)
buffoon, butt, fair game, game, monkey, patsy.
person (noun)
victim.
person who is fooled (noun)
butt, fool, mark, patsy, pigeon, pushover, sap, sitting duck, victim.
stupid person (noun)
sap.
tool (noun)
jackal.

v.

communication (verb)
befool, fool, gull, put one across, put one over, slang, put on, take in, COD.
deceive (verb)
betray, bilk, cheat, counterfeit, deceive, defraud, delude, falsify, forge, mislead, swindle.
dupe (verb)
hoodwink, trick.
fool someone (verb)
bamboozle, beguile, betray, cheat, cozen, deceive, defraud, delude, gull, hoodwink, mislead, swindle, trick, victimize, rip off.

Other synonyms:

bamboozle, cozen, double cross, entrap, four flush, gudgeon, pawn, sitting duck, stooge, sitting target. bluff, fall guy, pigeon, prey, pushover, string along, tool, rip off. beguile, instrument, lamb. sap. mug. mark. cheat
victimize.
deceive
cozen, hoodwink.
fool
beguile, fool.
take-in
take in.
Other relevant words:
bamboozle, befool, beguile, bluff, cozen, double cross, fall guy, four flush, gudgeon, gull, humbug, instrument, lamb, lead astray, mark, mug, pawn, pigeon, play false, prey, pushover, put one across, put one over, sap, sitting duck, slang, stooge, string along, tool, victimize, put on, rip off, COD, take for a ride, put something over on.

Usage examples for dupe

  1. " The worthy Ismail," said M. de Bonneval to me, as we were leaving the house late in the evening, " has been to- day the dupe of his vanity, and I have no doubt that he is sorry already for what he has done. – The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons by Jacques Casanova de Seingalt
  2. This was distinctly a good point in his character; no woman who gave her favours in exchange for presents received could hope to dupe him. – The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons by Jacques Casanova de Seingalt
  3. The Rover did not answer; but his companion saw, by the meaning smile which played about his lip, that he had been the dupe of an audacious and completely successful masquerade. – The Red Rover by James Fenimore Cooper