connoisseur vs cognoscente

connoisseur and cognoscente both are nouns.

Word	Noun	Adjective	Verb	Adverb
connoisseur	Yes	No	No	No
cognoscente	Yes	No	No	No

As nouns, connoisseur and cognoscente are synonyms defined as:

connoisseur and cognoscente: an expert able to appreciate a field; especially in the fine arts

connoisseur (noun)	cognoscente (noun)
an expert able to appreciate a field; especially in the fine arts	an expert able to appreciate a field; especially in the fine arts