clamor vs American spelling

clamor and American spelling both are nouns.

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

clamor (noun)	American spelling (noun)
loud and persistent outcry from many people	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')
a loud harsh or strident noise

clamor (verb)	American spelling (verb)
utter or proclaim insistently and noisily
make loud demands
compel someone to do something by insistent clamoring