campanile vs belfry

campanile and belfry both are nouns.

Word	Noun	Adjective	Verb	Adverb
campanile	Yes	No	No	No
belfry	Yes	No	No	No

As nouns, campanile and belfry are synonyms defined as:

campanile and belfry: a bell tower; usually stands alone unattached to a building

campanile (noun)	belfry (noun)
a bell tower; usually stands alone unattached to a building	a room (often at the top of a tower) where bells are hung
	a bell tower; usually stands alone unattached to a building