humouring vs Australian spelling

humouring and Australian spelling both are nouns.

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

humouring (noun)	Australian spelling (noun)
the act of indulging or gratifying a desire	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')