virtuoso vs ace

virtuoso and ace both are nouns.

Word	Noun	Adjective	Verb	Adverb
virtuoso	Yes	Yes	No	No
ace	Yes	Yes	Yes	No

As nouns, virtuoso and ace are synonyms defined as:

Other synonyms of virtuoso include adept, champion, genius, hotshot, maven, mavin, sensation, star, superstar, whiz, whizz, wiz, wizard.

virtuoso (noun)	ace (noun)
someone who is dazzlingly skilled in any field	a serve that the receiver is unable to reach
a musician who is a consummate master of technique and artistry	one of four playing cards in a deck having a single pip on its face
	someone who is dazzlingly skilled in any field
	the smallest whole number or a numeral representing this number

virtuoso (adjective)	ace (adjective)
having or revealing supreme mastery or skill	of the highest quality