dummy vs simpleton

dummy and simpleton both are nouns.

Word	Noun	Adjective	Verb	Adverb
dummy	Yes	Yes	Yes	No
simpleton	Yes	No	No	No

As nouns, simpleton is a hypernym of dummy; that is, simpleton is a word with a broader meaning than dummy:

Other hypernyms of dummy include simple.

dummy (noun)	simpleton (noun)
a figure representing the human form	a person lacking intelligence or common sense
a cartridge containing an explosive charge but no bullet
an ignorant or foolish person
a person who does not talk

dummy (adjective)	simpleton (adjective)
having the appearance of being real but lacking capacity to function

dummy (verb)	simpleton (verb)
make a dummy of