seed catalog vs American spelling

seed catalog and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
seed catalog	Yes	No	No	No
American spelling	Yes	No	No	No

seed catalog (noun)	American spelling (noun)
a list advertising seeds and their prices	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')