chequerboard vs Australian spelling

chequerboard and Australian spelling both are nouns.

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

chequerboard (noun)	Australian spelling (noun)
a board having 64 squares of two alternating colors	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')