honourable vs noble

honourable is not a noun while noble is a noun.

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

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

honourable (adjective)	noble (adjective)
worthy of being honored; entitled to honor and respect	having or showing or indicative of high or elevated character
adhering to ethical and moral principles	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