fragrancy vs sweetness

fragrancy and sweetness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fragrancy	Yes	No	No	No
sweetness	Yes	No	No	No

As nouns, fragrancy and sweetness are synonyms defined as:

Other synonyms of fragrancy include bouquet, fragrance, redolence.

fragrancy (noun)	sweetness (noun)
a pleasingly sweet olfactory property	the property of tasting as if it contains sugar
	a pleasingly sweet olfactory property
	the quality of giving pleasure
	the taste experience when sugar dissolves in the mouth