Australian spelling vs jeopardise

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

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

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

Australian spelling (verb)	jeopardise (verb)
	pose a threat to; present a danger to