American spelling vs synchronization

American spelling and synchronization both are nouns.

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

American spelling (noun)	synchronization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	coordinating by causing to indicate the same time
	an adjustment that causes something to occur or recur in unison
	the relation that exists when things occur at the same time