American spelling vs popularization

American spelling and popularization both are nouns.

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

American spelling (noun)	popularization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	the act of making something attractive to the general public
	an interpretation that easily understandable and acceptable