Australian spelling vs factorisation

Australian spelling and factorisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
factorisation	Yes	No	No	No

Australian spelling (noun)	factorisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	(mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression