American spelling vs practise

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

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

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

American spelling (verb)	practise (verb)
	learn by repetition
	engage in a rehearsal (of)
	carry out or practice; as of jobs and professions