American spelling vs desynchronization

American spelling and desynchronization both are nouns.

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

American spelling (noun)	desynchronization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	the relation that exists when things occur at unrelated times