luster vs American spelling

luster and American spelling both are nouns.

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

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