blue-blooded vs noble

blue-blooded is not a noun while noble is a noun.

Word	Noun	Adjective	Verb	Adverb
blue-blooded	No	Yes	No	No
noble	Yes	Yes	No	No

blue-blooded (noun)	noble (noun)
	a titled peer of the realm

blue-blooded (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