lewdness vs salacity

lewdness and salacity both are nouns.

Word	Noun	Adjective	Verb	Adverb
lewdness	Yes	No	No	No
salacity	Yes	No	No	No

As nouns, lewdness and salacity are synonyms defined as:

Other synonyms of lewdness include bawdiness, obscenity, salaciousness.

lewdness (noun)	salacity (noun)
the trait of behaving in an obscene manner	the trait of behaving in an obscene manner