modelling vs Australian spelling

modelling and Australian spelling both are nouns.

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

modelling (noun)	Australian spelling (noun)
the act of representing something (usually on a smaller scale)	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
a preliminary sculpture in wax or clay from which a finished work can be copied
sculpture produced by molding