centimetre vs Australian spelling

centimetre and Australian spelling both are nouns.

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

centimetre (noun)	Australian spelling (noun)
a metric unit of length equal to one hundredth of a meter	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')