graven image vs idol

graven image and idol both are nouns.

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

As nouns, graven image and idol are synonyms defined as:

Other synonyms of graven image include god.

graven image (noun)	idol (noun)
a material effigy that is worshipped	a material effigy that is worshipped
	an ideal instance; a perfect embodiment of a concept
	someone who is adored blindly and excessively