British spelling vs collectivise

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

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

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

British spelling (verb)	collectivise (verb)
	bring under collective control; of farms and industrial enterprises