duplicity vs deception

duplicity and deception both are nouns.

Word	Noun	Adjective	Verb	Adverb
duplicity	Yes	No	No	No
deception	Yes	No	No	No

As nouns, deception is a hypernym of duplicity; that is, deception is a word with a broader meaning than duplicity:

duplicity: acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another
deception: the act of deceiving

Other hypernyms of duplicity include deceit, dissembling, dissimulation.

As nouns, deception is a hypernym of duplicity; that is, deception is a word with a broader meaning than duplicity:

Other hypernyms of duplicity include deceit, misrepresentation.

duplicity (noun)	deception (noun)
acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another	the act of deceiving
a fraudulent or duplicitous representation	an illusory feat; considered magical by naive observers
	a misleading falsehood