American spelling vs labored

American spelling is a noun but labored is not a noun.

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

American spelling (noun)	labored (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

American spelling (adjective)	labored (adjective)
	lacking natural ease
	requiring or showing effort