initialisation vs Australian spelling

initialisation and Australian spelling both are nouns.

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

initialisation (noun)	Australian spelling (noun)
(computer science) the format of sectors on the surface of a hard disk drive so that the operating system can access them and setting a starting position	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')