Australian spelling vs foetus

Australian spelling and foetus both are nouns.

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

Australian spelling (noun)	foetus (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal