Australian spelling vs timbre

Australian spelling and timbre both are nouns.

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

Australian spelling (noun)	timbre (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	(music) the distinctive property of a complex sound (a voice or noise or musical sound)