Australian spelling vs fertilisation

Australian spelling and fertilisation both are nouns.

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

Australian spelling (noun)	fertilisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant
	making fertile as by applying fertilizer or manure