British spelling vs metricise

British spelling is a noun but metricise is not a noun.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
metricise	No	No	Yes	No

British spelling (noun)	metricise (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

British spelling (verb)	metricise (verb)
	convert from a non-metric to the metric system
	express in the metric system