hectometre vs Australian spelling

hectometre and Australian spelling both are nouns.

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

hectometre (noun)	Australian spelling (noun)
a metric unit of length equal to 100 meters	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')