summarisation vs Australian spelling

summarisation and Australian spelling both are nouns.

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

summarisation (noun)	Australian spelling (noun)
the act of preparing a summary (or an instance thereof); stating briefly and succinctly	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')