American spelling vs luster

American spelling and luster both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
luster	Yes	No	No	No

American spelling (noun)	luster (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	a surface coating for ceramics or porcelain
	a quality that outshines the usual
	the visual property of something that shines with reflected light