Australian spelling vs concentre

Australian spelling is a noun but concentre is not a noun.

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

Australian spelling (noun)	concentre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

Australian spelling (verb)	concentre (verb)
	bring into focus or alignment; to converge or cause to converge; of ideas or emotions