iconolatry vs idol worship

iconolatry and idol worship both are nouns.

Word	Noun	Adjective	Verb	Adverb
iconolatry	Yes	No	No	No
idol worship	Yes	No	No	No

As nouns, idol worship is a hypernym of iconolatry; that is, idol worship is a word with a broader meaning than iconolatry:

iconolatry: the worship of sacred images
idol worship: the worship of idols; the worship of physical objects or images as gods

Other hypernyms of iconolatry include idolatry.

iconolatry (noun)	idol worship (noun)
the worship of sacred images	the worship of idols; the worship of physical objects or images as gods