Australian spelling vs pasteurisation

Australian spelling and pasteurisation both are nouns.

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

Australian spelling (noun)	pasteurisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	partial sterilization of foods at a temperature that destroys harmful microorganisms without major changes in the chemistry of the food