Australian spelling vs square metre

Australian spelling and square metre both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
square metre	Yes	No	No	No

Australian spelling (noun)	square metre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a unit of measurement for area, defined as the area of a square with sides of exactly 1 metre; a centiare is 1/100th of an are