British spelling vs oxygenise

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

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

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

British spelling (verb)	oxygenise (verb)
	impregnate, combine, or supply with oxygen
	dehydrogenate with oxygen
	change (a compound) by increasing the proportion of the electronegative part; or change (an element or ion) from a lower to a higher positive valence: remove one or more electrons from (an atom, ion, or molecule)