graven image vs simulacrum

graven image and simulacrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
graven image	Yes	No	No	No
simulacrum	Yes	No	No	No

As nouns, simulacrum is a hypernym of graven image; that is, simulacrum is a word with a broader meaning than graven image:

graven image: a material effigy that is worshipped
simulacrum: a representation of a person (especially in the form of sculpture)

Other hypernyms of graven image include effigy, image.

graven image (noun)	simulacrum (noun)
a material effigy that is worshipped	a representation of a person (especially in the form of sculpture)
	an insubstantial or vague semblance