superior vs ace

superior and ace both are nouns.

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

superior (noun)	ace (noun)
a character or symbol set or printed or written above and immediately to one side of another character	a serve that the receiver is unable to reach
one of greater rank or station or quality	one of four playing cards in a deck having a single pip on its face
the head of a religious community	someone who is dazzlingly skilled in any field
a combatant who is able to defeat rivals	the smallest whole number or a numeral representing this number

superior (adjective)	ace (adjective)
written or printed above and to one side of another character	of the highest quality
of or characteristic of high rank or importance
of high or superior quality or performance
having an orbit farther from the sun than the Earth's orbit
(sometimes followed by `to') not subject to or influenced by
having a higher rank
(often followed by `to') above being affected or influenced by