symbolisation vs Australian spelling

symbolisation and Australian spelling both are nouns.

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

symbolisation (noun)	Australian spelling (noun)
the practice of investing things with symbolic meaning	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
something visible that by association or convention represents something else that is invisible
the use of symbols to convey meaning