British spelling vs immobilise

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

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

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

British spelling (verb)	immobilise (verb)
	cause to be unable to move
	prohibit the conversion or use of (assets)
	convert (assets) into fixed capital
	make defenseless
	to hold fast or prevent from moving
	hold as reserve or withdraw from circulation; of capital