British spelling vs mechanise

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

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

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

British spelling (verb)	mechanise (verb)
	make mechanical
	make monotonous; make automatic or routine
	equip with armed and armored motor vehicles