endeavour vs Australian spelling

endeavour and Australian spelling both are nouns.

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

endeavour (noun)	Australian spelling (noun)
earnest and conscientious activity intended to do or accomplish something	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
a purposeful or industrious undertaking (especially one that requires effort or boldness)

endeavour (verb)	Australian spelling (verb)
attempt by employing effort