metricize vs American spelling

metricize is not a noun while American spelling is a noun.

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

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

metricize (verb)	American spelling (verb)
convert from a non-metric to the metric system
express in the metric system