aristocratic vs noble

aristocratic is not a noun while noble is a noun.

Word	Noun	Adjective	Verb	Adverb
aristocratic	No	Yes	No	No
noble	Yes	Yes	No	No

aristocratic (noun)	noble (noun)
	a titled peer of the realm

aristocratic (adjective)	noble (adjective)
belonging to or characteristic of the nobility or aristocracy	having or showing or indicative of high or elevated character
	of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times
	impressive in size, manner, or appearance
	inert especially toward oxygen