Australian spelling vs square centimetre

Australian spelling and square centimetre both are nouns.

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

Australian spelling (noun)	square centimetre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a unit of area measurement equivalent to 1 centimeter in length multiplied by 1 centimeter in width, where one centimeter equals 0.3937 inch.