Australian spelling vs self-fertilisation

Australian spelling and self-fertilisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
self-fertilisation	Yes	No	No	No

Australian spelling (noun)	self-fertilisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	fertilization by the union of male and female gametes from the same individual