American spelling vs mortise

American spelling and mortise both are nouns.

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

American spelling (noun)	mortise (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	a square hole made to receive a tenon and so to form a joint

American spelling (verb)	mortise (verb)
	join by a tenon and mortise
	cut a hole for a tenon in