sun parlor vs American spelling

sun parlor and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
sun parlor	Yes	No	No	No
American spelling	Yes	No	No	No

sun parlor (noun)	American spelling (noun)
a room enclosed largely with glass and affording exposure to the sun	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')