solmization vs American spelling

solmization and American spelling both are nouns.

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

solmization (noun)	American spelling (noun)
singing using solfa syllables to denote the notes of the scale of C major	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')
a system of naming the notes of a musical scale by syllables instead of letters