lamb vs dupe

lamb and dupe both are nouns.

Word	Noun	Adjective	Verb	Adverb
lamb	Yes	No	Yes	No
dupe	Yes	No	Yes	No

As nouns, dupe is a hypernym of lamb; that is, dupe is a word with a broader meaning than lamb:

Other hypernyms of lamb include victim.

lamb (noun)	dupe (noun)
young sheep	a person who is tricked or swindled
the flesh of a young domestic sheep eaten as food
a sweet innocent mild-mannered person (especially a child)
a person easily deceived or cheated (especially in financial matters)

lamb (verb)	dupe (verb)
give birth to a lamb	fool or hoax